What would you fix first?

The advisories below are ordered by the Vulnetix risk prioritization strategy: exploitation evidence first, scores second. On the interactive page you can switch to three other lenses.

• Vulnetix priority default
  Malware first, then the KEV catalogues, then weaponized and observed exploitation, and only then the scores.
• Vendor rating
  The vendor's own words, ranked in the vendor's own order.
• CVSS score
  The CVSS base score the vendor published, or the highest score in the Vulnetix VDB when the vendor published none.
• EPSS likelihood
  FIRST’s exploit prediction. Advisories that resolve to no CVE have no EPSS and sort last.

Advisories

CVE-2026-21509

ExploitedCISA KEV listedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21509 · revision 7

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2016 (32-bit edition) <16.0.5539.1001	known_affected	16.0.5539.1001	5002713
Microsoft Office 2016 (32-bit edition) 16.0.5539.1001	fixed	16.0.5539.1001	—
Microsoft Office 2016 (64-bit edition) <16.0.5539.1001	known_affected	16.0.5539.1001	5002713
Microsoft Office 2016 (64-bit edition) 16.0.5539.1001	fixed	16.0.5539.1001	—
Microsoft Office 2019 for 32-bit editions <16.0.10417.20095	known_affected	16.0.10417.20095	—
Microsoft Office 2019 for 32-bit editions 16.0.10417.20095	fixed	16.0.10417.20095	—
Microsoft Office 2019 for 64-bit editions <16.0.10417.20095	known_affected	16.0.10417.20095	—
Microsoft Office 2019 for 64-bit editions 16.0.10417.20095	fixed	16.0.10417.20095	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—

CSAF MSRC advisory

msrc_CVE-2026-21509

ExploitedCISA KEV listedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21509 · revision 7

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2016 (32-bit edition) <16.0.5539.1001	known_affected	16.0.5539.1001	5002713
Microsoft Office 2016 (32-bit edition) 16.0.5539.1001	fixed	16.0.5539.1001	—
Microsoft Office 2016 (64-bit edition) <16.0.5539.1001	known_affected	16.0.5539.1001	5002713
Microsoft Office 2016 (64-bit edition) 16.0.5539.1001	fixed	16.0.5539.1001	—
Microsoft Office 2019 for 32-bit editions <16.0.10417.20095	known_affected	16.0.10417.20095	—
Microsoft Office 2019 for 32-bit editions 16.0.10417.20095	fixed	16.0.10417.20095	—
Microsoft Office 2019 for 64-bit editions <16.0.10417.20095	known_affected	16.0.10417.20095	—
Microsoft Office 2019 for 64-bit editions 16.0.10417.20095	fixed	16.0.10417.20095	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—

CSAF MSRC advisory

CVE-2026-20963

CISA KEV listedImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20963 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

msrc_CVE-2026-20963

CISA KEV listedImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20963 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

CVE-2026-20805

ExploitedCISA KEV listedImportantExploitation Detected

Tracking ID msrc_CVE-2026-20805 · revision 4

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20805

ExploitedCISA KEV listedImportantExploitation Detected

Tracking ID msrc_CVE-2026-20805 · revision 4

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20931

VulnCheck KEV listedImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20931 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20931

VulnCheck KEV listedImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20931 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20872

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20872 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20872

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20872 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20947

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20947 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

msrc_CVE-2026-20947

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20947 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

CVE-2026-20925

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20925 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20925

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20925 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20860

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20860 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20860

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20860 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20959

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20959 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

msrc_CVE-2026-20959

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20959 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

CVE-2026-20817

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20817 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20817

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20817 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20840

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20840 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20840

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20840 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20871

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20871 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20871

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20871 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20843

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20843 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20843

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20843 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20929

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20929 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—

CSAF MSRC advisory

msrc_CVE-2026-20929

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20929 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—

CSAF MSRC advisory

CVE-2026-20820

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20820 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20820

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20820 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20816

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20816 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20816

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20816 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20875

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20875 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20875

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20875 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-21520

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21520 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft Copilot Studio	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-21520

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21520 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft Copilot Studio	fixed	—	—

CSAF MSRC advisory

CVE-2026-20868

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20868 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20868

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20868 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20847

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20847 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20847

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20847 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20803

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20803 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SQL Server 2022 for x64-based Systems (CU 22) <16.0.4230.2	known_affected	16.0.4230.2	5072936
Microsoft SQL Server 2022 for x64-based Systems (CU 22) 16.0.4230.2	fixed	16.0.4230.2	—
Microsoft SQL Server 2022 for x64-based Systems (GDR) <16.0.1165.1	known_affected	16.0.1165.1	5073031
Microsoft SQL Server 2022 for x64-based Systems (GDR) 16.0.1165.1	fixed	16.0.1165.1	—
Microsoft SQL Server 2025 for x64-based Systems (GDR) <17.0.1050.2	known_affected	17.0.1050.2	5073177
Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2	fixed	17.0.1050.2	—

CSAF MSRC advisory

msrc_CVE-2026-20803

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20803 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SQL Server 2022 for x64-based Systems (CU 22) <16.0.4230.2	known_affected	16.0.4230.2	5072936
Microsoft SQL Server 2022 for x64-based Systems (CU 22) 16.0.4230.2	fixed	16.0.4230.2	—
Microsoft SQL Server 2022 for x64-based Systems (GDR) <16.0.1165.1	known_affected	16.0.1165.1	5073031
Microsoft SQL Server 2022 for x64-based Systems (GDR) 16.0.1165.1	fixed	16.0.1165.1	—
Microsoft SQL Server 2025 for x64-based Systems (GDR) <17.0.1050.2	known_affected	17.0.1050.2	5073177
Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2	fixed	17.0.1050.2	—

CSAF MSRC advisory

CVE-2026-20921

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20921 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20921

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20921 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20812

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20812 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20812

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20812 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20856

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20856 · revision 2

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20856

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20856 · revision 2

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20854

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20854 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20922

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20922 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20854

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20854 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20922

Active exploitation (sightings)ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20922 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-21265

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21265 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-21265

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21265 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20849

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20849 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20849

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20849 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-24307

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24307 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Copilot	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-24307

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24307 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Copilot	fixed	—	—

CSAF MSRC advisory

CVE-2026-20927

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20927 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20927

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20927 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20824

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20824 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20824

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20824 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-24306

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24306 · revision 1

Other

Product	Status	Fixed in	KB
Azure Front Door	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-24306

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24306 · revision 1

Other

Product	Status	Fixed in	KB
Azure Front Door	fixed	—	—

CSAF MSRC advisory

CVE-2026-20951

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20951 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

msrc_CVE-2026-20951

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20951 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

CVE-2026-20919

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20919 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20926

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20926 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20919

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20919 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20926

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20926 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20848

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20848 · revision 2

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20848

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20848 · revision 2

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20934

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20934 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20934

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20934 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20834

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20834 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20834

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20834 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20818

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20818 · revision 2

Other

Product	Status	Fixed in	KB
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20818

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20818 · revision 2

Other

Product	Status	Fixed in	KB
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20821

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20821 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20821

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20821 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20837

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20837 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20837

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20837 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20932

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20932 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20932

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20932 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-24304

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24304 · revision 1

Other

Product	Status	Fixed in	KB
Azure Resource Manager	fixed	—	—

CSAF MSRC advisory

CVE-2026-20946

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20946 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Excel 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Excel 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

msrc_CVE-2026-20946

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20946 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Excel 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Excel 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

CVE-2026-20823

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20823 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20827

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20827 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20838

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20838 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20823

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20823 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20827

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20827 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20838

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20838 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20828

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20828 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20828

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20828 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20862

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20862 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20862

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20862 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20955

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20955 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Office Online Server <16.0.10417.20083	known_affected	16.0.10417.20083	5002824
Office Online Server 16.0.10417.20083	fixed	16.0.10417.20083	—

CSAF MSRC advisory

msrc_CVE-2026-20955

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20955 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Office Online Server <16.0.10417.20083	known_affected	16.0.10417.20083	5002824
Office Online Server 16.0.10417.20083	fixed	16.0.10417.20083	—

CSAF MSRC advisory

CVE-2026-21524

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21524 · revision 1

Other

Product	Status	Fixed in	KB
Azure Data Explorer	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-21524

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21524 · revision 1

Other

Product	Status	Fixed in	KB
Azure Data Explorer	fixed	—	—

CSAF MSRC advisory

CVE-2026-21521

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21521 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Word Copilot	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-21521

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21521 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Word Copilot	fixed	—	—

CSAF MSRC advisory

CVE-2026-20851

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20851 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20851

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20851 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20953

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20953 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

msrc_CVE-2026-20953

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20953 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

CVE-2026-20829

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20829 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20835

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20835 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20829

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20829 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20835

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20835 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20864

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20864 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20864

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20864 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-21227

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21227 · revision 1

Other

Product	Status	Fixed in	KB
Azure Logic Apps	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-21227

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21227 · revision 1

Other

Product	Status	Fixed in	KB
Azure Logic Apps	fixed	—	—

CSAF MSRC advisory

CVE-2026-0386

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-0386 · revision 1

Other

Product	Status	Fixed in	KB
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-0386

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-0386 · revision 1

Other

Product	Status	Fixed in	KB
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20819

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20819 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

msrc_CVE-2026-20819

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20819 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

CVE-2026-24305

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24305 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft Entra ID	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-24305

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24305 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft Entra ID	fixed	—	—

CSAF MSRC advisory

CVE-2026-20825

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20825 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20833

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20833 · revision 1

Other

Product	Status	Fixed in	KB
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20825

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20825 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20833

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20833 · revision 1

Other

Product	Status	Fixed in	KB
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20952

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20952 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

msrc_CVE-2026-20952

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20952 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

CVE-2026-20960

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20960 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft Power Apps Desktop Client 25121	fixed	25121	—
Microsoft Power Apps Desktop Client <25121	known_affected	<25121	—

CSAF MSRC advisory

msrc_CVE-2026-20960

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20960 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft Power Apps Desktop Client 25121	fixed	25121	—
Microsoft Power Apps Desktop Client <25121	known_affected	<25121	—

CSAF MSRC advisory

CVE-2026-20944

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20944 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

msrc_CVE-2026-20944

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20944 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

CVE-2026-20876

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20876 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20876

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20876 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20939

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20939 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20939

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20939 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20937

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20937 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20937

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20937 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20804

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20804 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20852

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20852 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20804

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20804 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20852

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20852 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20810

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20810 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—

CSAF MSRC advisory

CVE-2026-20920

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20920 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—

CSAF MSRC advisory

msrc_CVE-2026-20810

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20810 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—

CSAF MSRC advisory

msrc_CVE-2026-20920

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20920 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—

CSAF MSRC advisory

CVE-2026-20957

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20957 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Excel 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Excel 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Office Online Server <16.0.10417.20083	known_affected	16.0.10417.20083	5002824
Office Online Server 16.0.10417.20083	fixed	16.0.10417.20083	—

CSAF MSRC advisory

msrc_CVE-2026-20957

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20957 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Excel 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Excel 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Office Online Server <16.0.10417.20083	known_affected	16.0.10417.20083	5002824
Office Online Server 16.0.10417.20083	fixed	16.0.10417.20083	—

CSAF MSRC advisory

CVE-2026-20950

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20950 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Excel 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Excel 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Office Online Server <16.0.10417.20083	known_affected	16.0.10417.20083	5002824
Office Online Server 16.0.10417.20083	fixed	16.0.10417.20083	—

CSAF MSRC advisory

msrc_CVE-2026-20950

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20950 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Excel 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Excel 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002831
Microsoft Excel 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Office Online Server <16.0.10417.20083	known_affected	16.0.10417.20083	5002824
Office Online Server 16.0.10417.20083	fixed	16.0.10417.20083	—

CSAF MSRC advisory

CVE-2026-20811

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20811 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20811

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20811 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20839

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20839 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20839

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20839 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20936

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20936 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20936

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20936 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20832

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20832 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20857

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20857 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20832

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20832 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20857

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20857 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20859

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20859 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20859

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20859 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20941

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20941 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20941

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20941 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20870

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20870 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20938

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20938 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

msrc_CVE-2026-20870

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20870 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20938

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20938 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

CVE-2026-20949

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20949 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

msrc_CVE-2026-20949

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20949 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

CVE-2026-20940

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20940 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—

CSAF MSRC advisory

msrc_CVE-2026-20940

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20940 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—

CSAF MSRC advisory

CVE-2026-20935

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20935 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

msrc_CVE-2026-20935

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20935 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

CVE-2026-20956

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20956 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

msrc_CVE-2026-20956

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20956 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—

CSAF MSRC advisory

CVE-2026-20962

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20962 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20962

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20962 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-21264

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21264 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft Account	fixed	—	—

CSAF MSRC advisory

msrc_CVE-2026-21264

Active exploitation (sightings)CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21264 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft Account	fixed	—	—

CSAF MSRC advisory

CVE-2026-20923

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20923 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20923

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20923 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20822

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20822 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20842

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20842 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20863

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20863 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20865

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20865 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20822

Active exploitation (sightings)CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20822 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20842

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20842 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20863

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20863 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20865

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20865 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-21219

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21219 · revision 1

Other

Product	Status	Fixed in	KB
Windows SDK <10.0.26100.7463	known_affected	10.0.26100.7463	—
Windows SDK 10.0.26100.7463	fixed	10.0.26100.7463	—

CSAF MSRC advisory

msrc_CVE-2026-21219

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21219 · revision 1

Other

Product	Status	Fixed in	KB
Windows SDK <10.0.26100.7463	known_affected	10.0.26100.7463	—
Windows SDK 10.0.26100.7463	fixed	10.0.26100.7463	—

CSAF MSRC advisory

CVE-2026-20809

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20809 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20809

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20809 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20958

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20958 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

msrc_CVE-2026-20958

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20958 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

CVE-2026-20844

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20844 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20844

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20844 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20853

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20853 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

msrc_CVE-2026-20853

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20853 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—

CSAF MSRC advisory

CVE-2026-21224

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21224 · revision 1

Other

Product	Status	Fixed in	KB
Azure Connected Machine Agent <1.60.03293.809	known_affected	1.60.03293.2680	—
Azure Connected Machine Agent 1.60.03293.809	fixed	1.60.03293.809	—

CSAF MSRC advisory

msrc_CVE-2026-21224

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21224 · revision 1

Other

Product	Status	Fixed in	KB
Azure Connected Machine Agent <1.60.03293.809	known_affected	1.60.03293.2680	—
Azure Connected Machine Agent 1.60.03293.809	fixed	1.60.03293.809	—

CSAF MSRC advisory

CVE-2026-20877

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20877 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20918

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20918 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20924

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20924 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20877

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20877 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20918

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20918 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20924

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20924 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20826

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20826 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20831

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20831 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20826

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20826 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20831

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20831 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20830

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20830 · revision 2

Other

Product	Status	Fixed in	KB
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20830

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20830 · revision 2

Other

Product	Status	Fixed in	KB
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20808

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20808 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20814

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20814 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20815

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20815 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20836

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20836 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20858

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20858 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20861

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20861 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20866

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20866 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20867

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20867 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20869

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20869 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20873

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20873 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20874

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20874 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20808

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20808 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20814

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20814 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20815

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20815 · revision 1

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20836

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20836 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20858

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20858 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20861

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20861 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20866

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20866 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20867

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20867 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20869

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20869 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) <6.0.6003.23717	known_affected	6.0.6003.23717	5073697
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 6.0.6003.23717	fixed	6.0.6003.23717	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) <6.1.7601.28117	known_affected	6.1.7601.28117	5073695
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.28117	fixed	6.1.7601.28117	—
Windows Server 2012 <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2012 R2 <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 R2 (Server Core installation) <6.3.9600.22968	known_affected	6.3.9600.22968	5073696
Windows Server 2012 R2 (Server Core installation) 6.3.9600.22968	fixed	6.3.9600.22968	—
Windows Server 2012 (Server Core installation) <6.2.9200.25868	known_affected	6.2.9200.25868	5073698
Windows Server 2012 (Server Core installation) 6.2.9200.25868	fixed	6.2.9200.25868	—
Windows Server 2016 <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2016 (Server Core installation) <10.0.14393.8783	known_affected	10.0.14393.8783	5073722
Windows Server 2016 (Server Core installation) 10.0.14393.8783	fixed	10.0.14393.8783	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20873

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20873 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-20874

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20874 · revision 1

Other

Product	Status	Fixed in	KB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6809	known_affected	10.0.19044.6809	5073724
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6809	fixed	10.0.19044.6809	—
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809	known_affected	10.0.19045.6809	5073724
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809	fixed	10.0.19045.6809	—
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491	known_affected	10.0.22631.6491	5073455
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491	fixed	10.0.22631.6491	—
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2019 <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2019 (Server Core installation) <10.0.17763.8276	known_affected	10.0.17763.8276	5073723
Windows Server 2019 (Server Core installation) 10.0.17763.8276	fixed	10.0.17763.8276	—
Windows Server 2022 <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2092	known_affected	10.0.25398.2092	5073450
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2092	fixed	10.0.25398.2092	—
Windows Server 2022 (Server Core installation) <10.0.20348.4648	known_affected	10.0.20348.4648	5073457
Windows Server 2022 (Server Core installation) 10.0.20348.4648	fixed	10.0.20348.4648	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-21223

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21223 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft Edge (Chromium-based) <144.0.3719.82	known_affected	144.0.3719.82	—
Microsoft Edge (Chromium-based) 144.0.3719.82	fixed	144.0.3719.82	—

CSAF MSRC advisory

msrc_CVE-2026-21223

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21223 · revision 2

Other

Product	Status	Fixed in	KB
Microsoft Edge (Chromium-based) <144.0.3719.82	known_affected	144.0.3719.82	—
Microsoft Edge (Chromium-based) 144.0.3719.82	fixed	144.0.3719.82	—

CSAF MSRC advisory

CVE-2026-21221

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21221 · revision 2

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

msrc_CVE-2026-21221

Active exploitation (sightings)ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21221 · revision 2

Other

Product	Status	Fixed in	KB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7623	known_affected	10.0.26100.7623	5074109
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7623	fixed	10.0.26100.7623	—
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7623	known_affected	10.0.26200.7623	5074109
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7623	fixed	10.0.26200.7623	—
Windows Server 2025 <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 10.0.26100.32230	fixed	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) <10.0.26100.32230	known_affected	10.0.26100.32230	—
Windows Server 2025 (Server Core installation) 10.0.26100.32230	fixed	10.0.26100.32230	—

CSAF MSRC advisory

CVE-2026-20965

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20965 · revision 1

Other

Product	Status	Fixed in	KB
Windows Admin Center in Azure Portal <0.70.0.0	known_affected	0.70.0.0	—
Windows Admin Center in Azure Portal 0.70.0.0	fixed	0.70.0.0	—

CSAF MSRC advisory

msrc_CVE-2026-20965

Active exploitation (sightings)ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20965 · revision 1

Other

Product	Status	Fixed in	KB
Windows Admin Center in Azure Portal <0.70.0.0	known_affected	0.70.0.0	—
Windows Admin Center in Azure Portal 0.70.0.0	fixed	0.70.0.0	—

CSAF MSRC advisory

CVE-2026-21226

PoC exploitImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21226 · revision 1

Other

Product	Status	Fixed in	KB
Azure Core shared client library for Python <1.38.0	known_affected	1.38.0	—
Azure Core shared client library for Python 1.38.0	fixed	1.38.0	—

CSAF MSRC advisory

msrc_CVE-2026-21226

PoC exploitImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21226 · revision 1

Other

Product	Status	Fixed in	KB
Azure Core shared client library for Python <1.38.0	known_affected	1.38.0	—
Azure Core shared client library for Python 1.38.0	fixed	1.38.0	—

CSAF MSRC advisory

CVE-2026-20943

Coalition ESS < 30%ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20943 · revision 3

Other

Product	Status	Fixed in	KB
Microsoft Office 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office Deployment Tool <16.0.19426.20170	known_affected	16.0.19426.20170	—
Microsoft Office Deployment Tool 16.0.19426.20170	fixed	16.0.19426.20170	—
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

msrc_CVE-2026-20943

Coalition ESS < 30%ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20943 · revision 3

Other

Product	Status	Fixed in	KB
Microsoft Office 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002826
Microsoft Office 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Office Deployment Tool <16.0.19426.20170	known_affected	16.0.19426.20170	—
Microsoft Office Deployment Tool 16.0.19426.20170	fixed	16.0.19426.20170	—
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft SharePoint Server Subscription Edition <16.0.19127.20442	known_affected	16.0.19127.20442	5002822
Microsoft SharePoint Server Subscription Edition 16.0.19127.20442	fixed	16.0.19127.20442	—

CSAF MSRC advisory

CVE-2026-20948

Coalition ESS < 30%ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20948 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft Word 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002829
Microsoft Word 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Word 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002829
Microsoft Word 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—

CSAF MSRC advisory

msrc_CVE-2026-20948

Coalition ESS < 30%ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20948 · revision 1

Other

Product	Status	Fixed in	KB
Microsoft 365 Apps for Enterprise for 32-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions <https://aka.ms/OfficeSecurityReleases	known_affected	<https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases	fixed	https://aka.ms/OfficeSecurityReleases	—
Microsoft Office LTSC for Mac 2021 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2021 16.105.26011018	fixed	16.105.26011018	—
Microsoft Office LTSC for Mac 2024 <16.105.26011018	known_affected	16.105.26011018	831049
Microsoft Office LTSC for Mac 2024 16.105.26011018	fixed	16.105.26011018	—
Microsoft SharePoint Enterprise Server 2016 <16.0.5535.1001	known_affected	16.0.5535.1001	5002828
Microsoft SharePoint Enterprise Server 2016 16.0.5535.1001	fixed	16.0.5535.1001	—
Microsoft SharePoint Server 2019 <16.0.10417.20083	known_affected	16.0.10417.20083	5002825
Microsoft SharePoint Server 2019 16.0.10417.20083	fixed	16.0.10417.20083	—
Microsoft Word 2016 (32-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002829
Microsoft Word 2016 (32-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—
Microsoft Word 2016 (64-bit edition) <16.0.5535.1000	known_affected	16.0.5535.1000	5002829
Microsoft Word 2016 (64-bit edition) 16.0.5535.1000	fixed	16.0.5535.1000	—

CSAF MSRC advisory