Vulnetix
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Patch Tuesday · January 13, 2026
248 CVEs 4 EXPLOITED

Released 2026-01-13 by the Microsoft Security Response Center. Mirrored into Vulnetix VDB with CSAF + VEX downloads.

Every advisory below is enriched with the Vulnetix VDB exploit-intelligence chip (hover a CVE ID in the interactive page to see CVSS, EPSS, KEV status, and PoC maturity). Each row also links to the raw CSAF and VEX documents stored on the Vulnetix artefact mirror.

Download manifest.json Back to archive

Advisories

CVE-2026-0386

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-0386 · revision 1

Other

ProductStatusFixed inKB
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-2026-20803

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20803 · revision 1

Other

ProductStatusFixed inKB
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-2026-20804

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20804 · revision 1

Other

ProductStatusFixed inKB
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-2026-20805

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-20805 · revision 4

Other

ProductStatusFixed inKB
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-2026-20808

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20808 · revision 1

Other

ProductStatusFixed inKB
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-2026-20809

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20809 · revision 1

Other

ProductStatusFixed inKB
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-2026-20810

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20810 · revision 1

Other

ProductStatusFixed inKB
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-2026-20811

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20811 · revision 1

Other

ProductStatusFixed inKB
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-2026-20812

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20812 · revision 1

Other

ProductStatusFixed inKB
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-2026-20814

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20814 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20815 · revision 1

Other

ProductStatusFixed inKB
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-2026-20816

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20816 · revision 1

Other

ProductStatusFixed inKB
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-2026-20817

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20817 · revision 1

Other

ProductStatusFixed inKB
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-2026-20818

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20818 · revision 2

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20819 · revision 1

Other

ProductStatusFixed inKB
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-2026-20820

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20820 · revision 1

Other

ProductStatusFixed inKB
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-2026-20821

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20821 · revision 1

Other

ProductStatusFixed inKB
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-2026-20822

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20822 · revision 1

Other

ProductStatusFixed inKB
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-2026-20823

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20823 · revision 1

Other

ProductStatusFixed inKB
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-2026-20824

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20824 · revision 1

Other

ProductStatusFixed inKB
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-2026-20825

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20825 · revision 1

Other

ProductStatusFixed inKB
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-2026-20826

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20826 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20827 · revision 1

Other

ProductStatusFixed inKB
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-2026-20828

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20828 · revision 1

Other

ProductStatusFixed inKB
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-2026-20829

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20829 · revision 1

Other

ProductStatusFixed inKB
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-2026-20830

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20830 · revision 2

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20831 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20832 · revision 1

Other

ProductStatusFixed inKB
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-2026-20833

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20833 · revision 1

Other

ProductStatusFixed inKB
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-2026-20834

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20834 · revision 1

Other

ProductStatusFixed inKB
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-2026-20835

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20835 · revision 1

Other

ProductStatusFixed inKB
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-2026-20836

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20836 · revision 1

Other

ProductStatusFixed inKB
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-2026-20837

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20837 · revision 1

Other

ProductStatusFixed inKB
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-2026-20838

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20838 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20839 · revision 1

Other

ProductStatusFixed inKB
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-2026-20840

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20840 · revision 1

Other

ProductStatusFixed inKB
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-2026-20842

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20842 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20843 · revision 1

Other

ProductStatusFixed inKB
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-2026-20844

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20844 · revision 1

Other

ProductStatusFixed inKB
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-2026-20847

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20847 · revision 1

Other

ProductStatusFixed inKB
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-2026-20848

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20848 · revision 2

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20849 · revision 1

Other

ProductStatusFixed inKB
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-2026-20851

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20851 · revision 1

Other

ProductStatusFixed inKB
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-2026-20852

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20852 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20853 · revision 1

Other

ProductStatusFixed inKB
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-2026-20854

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20854 · revision 1

Other

ProductStatusFixed inKB
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-2026-20856

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20856 · revision 2

Other

ProductStatusFixed inKB
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-2026-20857

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20857 · revision 1

Other

ProductStatusFixed inKB
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-2026-20858

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20858 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20859 · revision 1

Other

ProductStatusFixed inKB
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-2026-20860

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20860 · revision 1

Other

ProductStatusFixed inKB
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-2026-20861

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20861 · revision 1

Other

ProductStatusFixed inKB
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-2026-20862

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20862 · revision 1

Other

ProductStatusFixed inKB
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-2026-20863

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20863 · revision 1

Other

ProductStatusFixed inKB
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-2026-20864

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20864 · revision 1

Other

ProductStatusFixed inKB
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-2026-20865

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20865 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20866 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20867 · revision 1

Other

ProductStatusFixed inKB
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-2026-20868

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20868 · revision 1

Other

ProductStatusFixed inKB
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-2026-20869

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20869 · revision 1

Other

ProductStatusFixed inKB
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-2026-20870

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20870 · revision 1

Other

ProductStatusFixed inKB
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-2026-20871

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20871 · revision 1

Other

ProductStatusFixed inKB
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-2026-20872

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20872 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20873 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20874 · revision 1

Other

ProductStatusFixed inKB
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-2026-20875

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20875 · revision 1

Other

ProductStatusFixed inKB
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-2026-20876

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20876 · revision 1

Other

ProductStatusFixed inKB
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-2026-20877

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20877 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20918 · revision 1

Other

ProductStatusFixed inKB
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-2026-20919

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20919 · revision 1

Other

ProductStatusFixed inKB
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-2026-20920

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20920 · revision 1

Other

ProductStatusFixed inKB
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-2026-20921

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20921 · revision 1

Other

ProductStatusFixed inKB
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-2026-20922

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20922 · revision 1

Other

ProductStatusFixed inKB
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-2026-20923

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20923 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20924 · revision 1

Other

ProductStatusFixed inKB
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-2026-20925

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20925 · revision 1

Other

ProductStatusFixed inKB
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-2026-20926

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20926 · revision 1

Other

ProductStatusFixed inKB
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-2026-20927

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20927 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20929 · revision 1

Other

ProductStatusFixed inKB
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-2026-20931

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20931 · revision 1

Other

ProductStatusFixed inKB
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-2026-20932

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20932 · revision 1

Other

ProductStatusFixed inKB
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-2026-20934

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20934 · revision 1

Other

ProductStatusFixed inKB
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-2026-20935

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20935 · revision 1

Other

ProductStatusFixed inKB
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-2026-20936

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20936 · revision 1

Other

ProductStatusFixed inKB
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-2026-20937

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20937 · revision 1

Other

ProductStatusFixed inKB
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-2026-20938

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20938 · revision 1

Other

ProductStatusFixed inKB
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-2026-20939

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20939 · revision 1

Other

ProductStatusFixed inKB
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-2026-20940

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20940 · revision 1

Other

ProductStatusFixed inKB
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-2026-20941

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20941 · revision 1

Other

ProductStatusFixed inKB
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-2026-20943

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20943 · revision 3

Other

ProductStatusFixed inKB
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-2026-20944

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20944 · revision 1

Other

ProductStatusFixed inKB
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-2026-20946

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20946 · revision 1

Other

ProductStatusFixed inKB
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-2026-20947

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20947 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20948 · revision 1

Other

ProductStatusFixed inKB
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

CVE-2026-20949

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20949 · revision 1

Other

ProductStatusFixed inKB
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-2026-20950

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20950 · revision 1

Other

ProductStatusFixed inKB
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-2026-20951

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20951 · revision 1

Other

ProductStatusFixed inKB
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-2026-20952

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20952 · revision 1

Other

ProductStatusFixed inKB
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-2026-20953

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20953 · revision 1

Other

ProductStatusFixed inKB
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-2026-20955

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20955 · revision 1

Other

ProductStatusFixed inKB
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-2026-20956

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20956 · revision 1

Other

ProductStatusFixed inKB
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-2026-20957

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20957 · revision 1

Other

ProductStatusFixed inKB
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-2026-20958

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20958 · revision 2

Other

ProductStatusFixed inKB
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-2026-20959

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20959 · revision 1

Other

ProductStatusFixed inKB
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-2026-20960

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20960 · revision 2

Other

ProductStatusFixed inKB
Microsoft Power Apps Desktop Client 25121 fixed 25121 —
Microsoft Power Apps Desktop Client <25121 known_affected <25121 —
CSAF MSRC advisory

CVE-2026-20962

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20962 · revision 1

Other

ProductStatusFixed inKB
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-2026-20963

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20963 · revision 2

Other

ProductStatusFixed inKB
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-2026-20965

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20965 · revision 1

Other

ProductStatusFixed inKB
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-2026-21219

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21219 · revision 1

Other

ProductStatusFixed inKB
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-2026-21221

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21221 · revision 2

Other

ProductStatusFixed inKB
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-2026-21223

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21223 · revision 2

Other

ProductStatusFixed inKB
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-2026-21224

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21224 · revision 1

Other

ProductStatusFixed inKB
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-2026-21226

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21226 · revision 1

Other

ProductStatusFixed inKB
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-2026-21227

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21227 · revision 1

Other

ProductStatusFixed inKB
Azure Logic Apps fixed — —
CSAF MSRC advisory

CVE-2026-21264

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21264 · revision 1

Other

ProductStatusFixed inKB
Microsoft Account fixed — —
CSAF MSRC advisory

CVE-2026-21265

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21265 · revision 1

Other

ProductStatusFixed inKB
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-2026-21509

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21509 · revision 7

Other

ProductStatusFixed inKB
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-2026-21520

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21520 · revision 1

Other

ProductStatusFixed inKB
Microsoft Copilot Studio fixed — —
CSAF MSRC advisory

CVE-2026-21521

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21521 · revision 1

Other

ProductStatusFixed inKB
Microsoft 365 Word Copilot fixed — —
CSAF MSRC advisory

CVE-2026-21524

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21524 · revision 1

Other

ProductStatusFixed inKB
Azure Data Explorer fixed — —
CSAF MSRC advisory

CVE-2026-24304

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24304 · revision 1

Other

ProductStatusFixed inKB
Azure Resource Manager fixed — —
CSAF MSRC advisory

CVE-2026-24305

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24305 · revision 1

Other

ProductStatusFixed inKB
Microsoft Entra ID fixed — —
CSAF MSRC advisory

CVE-2026-24306

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24306 · revision 1

Other

ProductStatusFixed inKB
Azure Front Door fixed — —
CSAF MSRC advisory

CVE-2026-24307

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24307 · revision 1

Other

ProductStatusFixed inKB
Microsoft 365 Copilot fixed — —
CSAF MSRC advisory

msrc_CVE-2026-0386

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-0386 · revision 1

Other

ProductStatusFixed inKB
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-2026-20803

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20803 · revision 1

Other

ProductStatusFixed inKB
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-2026-20804

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20804 · revision 1

Other

ProductStatusFixed inKB
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-2026-20805

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-20805 · revision 4

Other

ProductStatusFixed inKB
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-2026-20808

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20808 · revision 1

Other

ProductStatusFixed inKB
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-2026-20809

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20809 · revision 1

Other

ProductStatusFixed inKB
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-2026-20810

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20810 · revision 1

Other

ProductStatusFixed inKB
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-2026-20811

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20811 · revision 1

Other

ProductStatusFixed inKB
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-2026-20812

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20812 · revision 1

Other

ProductStatusFixed inKB
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-2026-20814

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20814 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20815 · revision 1

Other

ProductStatusFixed inKB
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-2026-20816

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20816 · revision 1

Other

ProductStatusFixed inKB
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-2026-20817

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20817 · revision 1

Other

ProductStatusFixed inKB
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-2026-20818

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20818 · revision 2

Other

ProductStatusFixed inKB
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-2026-20819

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20819 · revision 1

Other

ProductStatusFixed inKB
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-2026-20820

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20820 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20821 · revision 1

Other

ProductStatusFixed inKB
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-2026-20822

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20822 · revision 1

Other

ProductStatusFixed inKB
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-2026-20823

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20823 · revision 1

Other

ProductStatusFixed inKB
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-2026-20824

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20824 · revision 1

Other

ProductStatusFixed inKB
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-2026-20825

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20825 · revision 1

Other

ProductStatusFixed inKB
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-2026-20826

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20826 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20827 · revision 1

Other

ProductStatusFixed inKB
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-2026-20828

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20828 · revision 1

Other

ProductStatusFixed inKB
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-2026-20829

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20829 · revision 1

Other

ProductStatusFixed inKB
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-2026-20830

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20830 · revision 2

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20831 · revision 1

Other

ProductStatusFixed inKB
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-2026-20832

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20832 · revision 1

Other

ProductStatusFixed inKB
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-2026-20833

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20833 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20834 · revision 1

Other

ProductStatusFixed inKB
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-2026-20835

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20835 · revision 1

Other

ProductStatusFixed inKB
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-2026-20836

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20836 · revision 1

Other

ProductStatusFixed inKB
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-2026-20837

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20837 · revision 1

Other

ProductStatusFixed inKB
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-2026-20838

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20838 · revision 1

Other

ProductStatusFixed inKB
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-2026-20839

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20839 · revision 1

Other

ProductStatusFixed inKB
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-2026-20840

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20840 · revision 1

Other

ProductStatusFixed inKB
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-2026-20842

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20842 · revision 1

Other

ProductStatusFixed inKB
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-2026-20843

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20843 · revision 1

Other

ProductStatusFixed inKB
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-2026-20844

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20844 · revision 1

Other

ProductStatusFixed inKB
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-2026-20847

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20847 · revision 1

Other

ProductStatusFixed inKB
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-2026-20848

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20848 · revision 2

Other

ProductStatusFixed inKB
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-2026-20849

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20849 · revision 1

Other

ProductStatusFixed inKB
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-2026-20851

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20851 · revision 1

Other

ProductStatusFixed inKB
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-2026-20852

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20852 · revision 1

Other

ProductStatusFixed inKB
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-2026-20853

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20853 · revision 1

Other

ProductStatusFixed inKB
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-2026-20854

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20854 · revision 1

Other

ProductStatusFixed inKB
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-2026-20856

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20856 · revision 2

Other

ProductStatusFixed inKB
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-2026-20857

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20857 · revision 1

Other

ProductStatusFixed inKB
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-2026-20858

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20858 · revision 1

Other

ProductStatusFixed inKB
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-2026-20859

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20859 · revision 1

Other

ProductStatusFixed inKB
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-2026-20860

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20860 · revision 1

Other

ProductStatusFixed inKB
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-2026-20861

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20861 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20862 · revision 1

Other

ProductStatusFixed inKB
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-2026-20863

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20863 · revision 1

Other

ProductStatusFixed inKB
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-2026-20864

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20864 · revision 1

Other

ProductStatusFixed inKB
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-2026-20865

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20865 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20866 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20867 · revision 1

Other

ProductStatusFixed inKB
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-2026-20868

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20868 · revision 1

Other

ProductStatusFixed inKB
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-2026-20869

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20869 · revision 1

Other

ProductStatusFixed inKB
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-2026-20870

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20870 · revision 1

Other

ProductStatusFixed inKB
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-2026-20871

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20871 · revision 1

Other

ProductStatusFixed inKB
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-2026-20872

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20872 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20873 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20874 · revision 1

Other

ProductStatusFixed inKB
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-2026-20875

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20875 · revision 1

Other

ProductStatusFixed inKB
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-2026-20876

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20876 · revision 1

Other

ProductStatusFixed inKB
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-2026-20877

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20877 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20918 · revision 1

Other

ProductStatusFixed inKB
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-2026-20919

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20919 · revision 1

Other

ProductStatusFixed inKB
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-2026-20920

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20920 · revision 1

Other

ProductStatusFixed inKB
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-2026-20921

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20921 · revision 1

Other

ProductStatusFixed inKB
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-2026-20922

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-20922 · revision 1

Other

ProductStatusFixed inKB
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-2026-20923

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20923 · revision 1

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20924 · revision 1

Other

ProductStatusFixed inKB
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-2026-20925

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20925 · revision 1

Other

ProductStatusFixed inKB
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-2026-20926

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20926 · revision 1

Other

ProductStatusFixed inKB
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-2026-20927

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20927 · revision 1

Other

ProductStatusFixed inKB
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-2026-20929

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20929 · revision 1

Other

ProductStatusFixed inKB
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-2026-20931

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20931 · revision 1

Other

ProductStatusFixed inKB
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-2026-20932

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20932 · revision 1

Other

ProductStatusFixed inKB
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-2026-20934

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20934 · revision 1

Other

ProductStatusFixed inKB
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-2026-20935

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20935 · revision 1

Other

ProductStatusFixed inKB
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-2026-20936

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20936 · revision 1

Other

ProductStatusFixed inKB
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-2026-20937

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20937 · revision 1

Other

ProductStatusFixed inKB
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-2026-20938

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20938 · revision 1

Other

ProductStatusFixed inKB
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-2026-20939

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20939 · revision 1

Other

ProductStatusFixed inKB
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-2026-20940

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20940 · revision 1

Other

ProductStatusFixed inKB
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-2026-20941

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20941 · revision 1

Other

ProductStatusFixed inKB
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-2026-20943

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20943 · revision 3

Other

ProductStatusFixed inKB
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-2026-20944

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20944 · revision 1

Other

ProductStatusFixed inKB
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-2026-20946

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20946 · revision 1

Other

ProductStatusFixed inKB
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-2026-20947

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-20947 · revision 1

Other

ProductStatusFixed inKB
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-2026-20948

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20948 · revision 1

Other

ProductStatusFixed inKB
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-2026-20949

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20949 · revision 1

Other

ProductStatusFixed inKB
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-2026-20950

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20950 · revision 1

Other

ProductStatusFixed inKB
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-2026-20951

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20951 · revision 1

Other

ProductStatusFixed inKB
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-2026-20952

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20952 · revision 1

Other

ProductStatusFixed inKB
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

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20953 · revision 1

Other

ProductStatusFixed inKB
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-2026-20955

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20955 · revision 1

Other

ProductStatusFixed inKB
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-2026-20956

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20956 · revision 1

Other

ProductStatusFixed inKB
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-2026-20957

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-20957 · revision 1

Other

ProductStatusFixed inKB
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-2026-20958

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20958 · revision 2

Other

ProductStatusFixed inKB
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

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20959 · revision 1

Other

ProductStatusFixed inKB
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-2026-20960

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20960 · revision 2

Other

ProductStatusFixed inKB
Microsoft Power Apps Desktop Client 25121 fixed 25121 —
Microsoft Power Apps Desktop Client <25121 known_affected <25121 —
CSAF MSRC advisory

msrc_CVE-2026-20962

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20962 · revision 1

Other

ProductStatusFixed inKB
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-2026-20963

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20963 · revision 2

Other

ProductStatusFixed inKB
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-2026-20965

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20965 · revision 1

Other

ProductStatusFixed inKB
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-2026-21219

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21219 · revision 1

Other

ProductStatusFixed inKB
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-2026-21221

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21221 · revision 2

Other

ProductStatusFixed inKB
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-2026-21223

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21223 · revision 2

Other

ProductStatusFixed inKB
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-2026-21224

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21224 · revision 1

Other

ProductStatusFixed inKB
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-2026-21226

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21226 · revision 1

Other

ProductStatusFixed inKB
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-2026-21227

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21227 · revision 1

Other

ProductStatusFixed inKB
Azure Logic Apps fixed — —
CSAF MSRC advisory

msrc_CVE-2026-21264

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21264 · revision 1

Other

ProductStatusFixed inKB
Microsoft Account fixed — —
CSAF MSRC advisory

msrc_CVE-2026-21265

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21265 · revision 1

Other

ProductStatusFixed inKB
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-2026-21509

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21509 · revision 7

Other

ProductStatusFixed inKB
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-2026-21520

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21520 · revision 1

Other

ProductStatusFixed inKB
Microsoft Copilot Studio fixed — —
CSAF MSRC advisory

msrc_CVE-2026-21521

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21521 · revision 1

Other

ProductStatusFixed inKB
Microsoft 365 Word Copilot fixed — —
CSAF MSRC advisory

msrc_CVE-2026-21524

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21524 · revision 1

Other

ProductStatusFixed inKB
Azure Data Explorer fixed — —
CSAF MSRC advisory

msrc_CVE-2026-24304

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24304 · revision 1

Other

ProductStatusFixed inKB
Azure Resource Manager fixed — —
CSAF MSRC advisory

msrc_CVE-2026-24305

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24305 · revision 1

Other

ProductStatusFixed inKB
Microsoft Entra ID fixed — —
CSAF MSRC advisory

msrc_CVE-2026-24306

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24306 · revision 1

Other

ProductStatusFixed inKB
Azure Front Door fixed — —
CSAF MSRC advisory

msrc_CVE-2026-24307

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24307 · revision 1

Other

ProductStatusFixed inKB
Microsoft 365 Copilot fixed — —
CSAF MSRC advisory

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