Vulnetix
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Patch Tuesday · February 10, 2026
124 CVEs 12 EXPLOITED

Released 2026-02-10 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-2023-2804

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2023-2804 · revision 1

Other

ProductStatusFixed inKB
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
CSAF MSRC advisory

CVE-2026-0102

LowExploitation Unlikely

Tracking ID msrc_CVE-2026-0102 · revision 1

Other

ProductStatusFixed inKB
Microsoft Edge (Chromium-based) <145.0.3800.58 known_affected 145.0.3800.58 —
Microsoft Edge (Chromium-based) 145.0.3800.58 fixed 145.0.3800.58 —
CSAF MSRC advisory

CVE-2026-0391

ModerateExploitation Less Likely

Tracking ID msrc_CVE-2026-0391 · revision 1

Other

ProductStatusFixed inKB
Microsoft Edge (Chromium-based) <143.0.3650.66 known_affected 143.0.3650.66 —
Microsoft Edge (Chromium-based) 143.0.3650.66 fixed 143.0.3650.66 —
CSAF MSRC advisory

CVE-2026-20841

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20841 · revision 4

Other

ProductStatusFixed inKB
Windows Notepad <11.2512 known_affected 11.2512 —
Windows Notepad 11.2512 fixed 11.2512 —
CSAF MSRC advisory

CVE-2026-20846

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20846 · revision 1

Other

ProductStatusFixed inKB
Microsoft Office for Android <16.0.19822.20000 known_affected 16.0.19822.20000 113412
Microsoft Office for Android 16.0.19822.20000 fixed 16.0.19822.20000 —
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21218

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21218 · revision 1

Other

ProductStatusFixed inKB
.NET 10.0 installed on Linux <10.0.3 known_affected 10.0.3 5077862
.NET 10.0 installed on Linux 10.0.3 fixed 10.0.3 —
.NET 10.0 installed on Mac OS <10.0.3 known_affected 10.0.3 5077862
.NET 10.0 installed on Mac OS 10.0.3 fixed 10.0.3 —
.NET 10.0 installed on Windows <10.0.3 known_affected 10.0.3 5077862
.NET 10.0 installed on Windows 10.0.3 fixed 10.0.3 —
.NET 8.0 installed on Linux <8.0.24 known_affected 8.0.24 5077863
.NET 8.0 installed on Linux 8.0.24 fixed 8.0.24 —
.NET 8.0 installed on Mac OS <8.0.24 known_affected 8.0.24 5077863
.NET 8.0 installed on Mac OS 8.0.24 fixed 8.0.24 —
.NET 8.0 installed on Windows <8.0.24 known_affected 8.0.24 5077863
.NET 8.0 installed on Windows 8.0.24 fixed 8.0.24 —
.NET 9.0 installed on Linux <9.0.13 known_affected 9.0.13 5077864
.NET 9.0 installed on Linux 9.0.13 fixed 9.0.13 —
.NET 9.0 installed on Mac OS <9.0.13 known_affected 9.0.13 5077864
.NET 9.0 installed on Mac OS 9.0.13 fixed 9.0.13 —
.NET 9.0 installed on Windows <9.0.13 known_affected 9.0.13 5077864
.NET 9.0 installed on Windows 9.0.13 fixed 9.0.13 —
CSAF MSRC advisory

CVE-2026-21222

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21222 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21228

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21228 · revision 1

Other

ProductStatusFixed inKB
Azure Local <2510.0.3002 known_affected 2510.0.3002 —
Azure Local 2510.0.3002 fixed 2510.0.3002 —
CSAF MSRC advisory

CVE-2026-21229

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21229 · revision 1

Other

ProductStatusFixed inKB
Power BI Report Server <15.0.1120.113 known_affected 15.0.1120.113 —
Power BI Report Server 15.0.1120.113 fixed 15.0.1120.113 —
CSAF MSRC advisory

CVE-2026-21231

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21231 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21232

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21232 · revision 1

Other

ProductStatusFixed inKB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21234

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21234 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21235

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21235 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
CSAF MSRC advisory

CVE-2026-21236

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21236 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21237

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21237 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21238

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21238 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21239

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21239 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21240

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21240 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21241

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21241 · revision 1

Other

ProductStatusFixed inKB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21242

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21242 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21243

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21243 · revision 1

Other

ProductStatusFixed inKB
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21244

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21244 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21245

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21245 · revision 2

Other

ProductStatusFixed inKB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21246

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21246 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21247

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21247 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21248

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21248 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21249

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21249 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21250

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21250 · revision 1

Other

ProductStatusFixed inKB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21251

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21251 · revision 1

Other

ProductStatusFixed inKB
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21253

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21253 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21255

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21255 · revision 2

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21256

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21256 · revision 3

Other

ProductStatusFixed inKB
Microsoft Visual Studio 2022 version 17.14 <17.14.26 known_affected 17.14.26 —
Microsoft Visual Studio 2022 version 17.14 17.14.26 fixed 17.14.26 —
Microsoft Visual Studio 2026 version 18.3 <18.3.0 known_affected 18.3.0 —
Microsoft Visual Studio 2026 version 18.3 18.3.0 fixed 18.3.0 —
CSAF MSRC advisory

CVE-2026-21257

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21257 · revision 2

Other

ProductStatusFixed inKB
Microsoft Visual Studio 2022 version 17.14 <17.14.26 known_affected 17.14.26 —
Microsoft Visual Studio 2022 version 17.14 17.14.26 fixed 17.14.26 —
Microsoft Visual Studio 2026 version 18.3 <18.3.0 known_affected 18.3.0 —
Microsoft Visual Studio 2026 version 18.3 18.3.0 fixed 18.3.0 —
CSAF MSRC advisory

CVE-2026-21258

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21258 · 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) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Excel 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
Office Online Server <16.0.10417.20097 known_affected 16.0.10417.20097 5002835
Office Online Server 16.0.10417.20097 fixed 16.0.10417.20097 —
CSAF MSRC advisory

CVE-2026-21259

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21259 · 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) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Excel 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
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 —
Office Online Server <16.0.10417.20097 known_affected 16.0.10417.20097 5002835
Office Online Server 16.0.10417.20097 fixed 16.0.10417.20097 —
CSAF MSRC advisory

CVE-2026-21260

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21260 · 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 Outlook 2016 (32-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Outlook 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Outlook 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Outlook 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft SharePoint Enterprise Server 2016 <16.0.5539.1002 known_affected 16.0.5539.1002 5002841
Microsoft SharePoint Enterprise Server 2016 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft SharePoint Server 2019 <16.0.10417.20097 known_affected 16.0.10417.20097 5002834
Microsoft SharePoint Server 2019 16.0.10417.20097 fixed 16.0.10417.20097 —
Microsoft SharePoint Server Subscription Edition <16.0.19127.20518 known_affected 16.0.19127.20518 5002833
Microsoft SharePoint Server Subscription Edition 16.0.19127.20518 fixed 16.0.19127.20518 —
CSAF MSRC advisory

CVE-2026-21261

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21261 · 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) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Excel 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
Office Online Server <16.0.10417.20097 known_affected 16.0.10417.20097 5002835
Office Online Server 16.0.10417.20097 fixed 16.0.10417.20097 —
CSAF MSRC advisory

CVE-2026-21508

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21508 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21510

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21510 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21511

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21511 · revision 2

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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
Microsoft SharePoint Enterprise Server 2016 <16.0.5539.1002 known_affected 16.0.5539.1002 5002841
Microsoft SharePoint Enterprise Server 2016 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft SharePoint Server 2019 <16.0.10417.20097 known_affected 16.0.10417.20097 5002834
Microsoft SharePoint Server 2019 16.0.10417.20097 fixed 16.0.10417.20097 —
Microsoft SharePoint Server Subscription Edition <16.0.19127.20518 known_affected 16.0.19127.20518 5002833
Microsoft SharePoint Server Subscription Edition 16.0.19127.20518 fixed 16.0.19127.20518 —
Microsoft Word 2016 (32-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Word 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Word 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Word 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
CSAF MSRC advisory

CVE-2026-21512

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21512 · revision 1

Other

ProductStatusFixed inKB
Azure DevOps Server 2022 <20260204.3 known_affected 20260204.3 20260204
Azure DevOps Server 2022 20260204.3 fixed 20260204.3 —
CSAF MSRC advisory

CVE-2026-21513

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21513 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21514

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21514 · 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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
CSAF MSRC advisory

CVE-2026-21516

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21516 · revision 1

Other

ProductStatusFixed inKB
GitHub Copilot Plugin for JetBrains IDEs <1.5.63 known_affected 1.5.63 933548
GitHub Copilot Plugin for JetBrains IDEs 1.5.63 fixed 1.5.63 —
CSAF MSRC advisory

CVE-2026-21517

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21517 · revision 2

Other

ProductStatusFixed inKB
Windows App for Mac <11.3.2 known_affected 11.3.2 868963
Windows App for Mac 11.3.2 fixed 11.3.2 —
CSAF MSRC advisory

CVE-2026-21518

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21518 · revision 3

Other

ProductStatusFixed inKB
Microsoft Visual Studio Code CoPilot Chat Extension <0.37.1 known_affected 0.37.1 —
Microsoft Visual Studio Code CoPilot Chat Extension 0.37.1 fixed 0.37.1 —
Visual Studio Code <1.110.1 known_affected 1.110.1 —
Visual Studio Code 1.110.1 fixed 1.110.1 —
CSAF MSRC advisory

CVE-2026-21519

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21519 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21522

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-21522 · revision 1

Other

ProductStatusFixed inKB
Microsoft ACI Confidential Containers <1.2.8 known_affected 1.2.8 —
Microsoft ACI Confidential Containers 1.2.8 fixed 1.2.8 —
CSAF MSRC advisory

CVE-2026-21523

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21523 · revision 3

Other

ProductStatusFixed inKB
Microsoft Visual Studio Code CoPilot Chat Extension <0.37.1 known_affected 0.37.1 —
Microsoft Visual Studio Code CoPilot Chat Extension 0.37.1 fixed 0.37.1 —
Visual Studio Code <1.110.1 known_affected 1.110.1 —
Visual Studio Code 1.110.1 fixed 1.110.1 —
CSAF MSRC advisory

CVE-2026-21525

ExploitedModerateExploitation Detected

Tracking ID msrc_CVE-2026-21525 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21527

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21527 · revision 1

Other

ProductStatusFixed inKB
Microsoft Exchange Server 2016 Cumulative Update 23 <15.01.2507.066 known_affected 15.01.2507.066 5074995
Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.066 fixed 15.01.2507.066 —
Microsoft Exchange Server 2019 Cumulative Update 14 <15.02.1544.039 known_affected 15.02.1544.039 5074994
Microsoft Exchange Server 2019 Cumulative Update 14 15.02.1544.039 fixed 15.02.1544.039 —
Microsoft Exchange Server 2019 Cumulative Update 15 <15.02.1748.043 known_affected 15.02.1748.043 5074993
Microsoft Exchange Server 2019 Cumulative Update 15 15.02.1748.043 fixed 15.02.1748.043 —
Microsoft Exchange Server Subscription Edition RTM <15.02.2562.037 known_affected 15.02.2562.037 5074992
Microsoft Exchange Server Subscription Edition RTM 15.02.2562.037 fixed 15.02.2562.037 —
CSAF MSRC advisory

CVE-2026-21528

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21528 · revision 2

Other

ProductStatusFixed inKB
Azure IoT Explorer <0.15.13 known_affected <0.15.13 —
Azure IoT Explorer 0.15.13 fixed 0.15.13 —
CSAF MSRC advisory

CVE-2026-21529

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21529 · revision 1

Other

ProductStatusFixed inKB
Azure HDInsight <5.1 known_affected 5.1 —
Azure HDInsight 5.1 fixed 5.1 —
CSAF MSRC advisory

CVE-2026-21531

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21531 · revision 1

Other

ProductStatusFixed inKB
Azure AI Language Authoring <1.0.0b4 known_affected 1.0.0b4 —
Azure AI Language Authoring 1.0.0b4 fixed 1.0.0b4 —
CSAF MSRC advisory

CVE-2026-21532

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21532 · revision 1

Other

ProductStatusFixed inKB
Azure Functions fixed — —
CSAF MSRC advisory

CVE-2026-21533

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21533 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

CVE-2026-21535

CriticalExploitation Unlikely

Tracking ID msrc_CVE-2026-21535 · revision 1

Other

ProductStatusFixed inKB
Microsoft Teams fixed — —
CSAF MSRC advisory

CVE-2026-21537

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21537 · revision 1

Other

ProductStatusFixed inKB
Microsoft Defender for Endpoint for Linux <1.0.9.0 known_affected 1.0.9.0 —
Microsoft Defender for Endpoint for Linux 1.0.9.0 fixed 1.0.9.0 —
CSAF MSRC advisory

CVE-2026-23655

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-23655 · revision 1

Other

ProductStatusFixed inKB
Microsoft ACI Confidential Containers <2.12 known_affected <2.12 —
Microsoft ACI Confidential Containers 2.12 fixed 2.12 —
CSAF MSRC advisory

CVE-2026-24300

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24300 · revision 1

Other

ProductStatusFixed inKB
Azure Front Door fixed — —
CSAF MSRC advisory

CVE-2026-24302

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24302 · revision 2

Other

ProductStatusFixed inKB
Azure ARC fixed — —
CSAF MSRC advisory

CVE-2026-26119

CriticalExploitation More Likely

Tracking ID msrc_CVE-2026-26119 · revision 1

Other

ProductStatusFixed inKB
Windows Admin Center <2.6.4 known_affected 2.6.4 —
Windows Admin Center 2.6.4 fixed 2.6.4 —
CSAF MSRC advisory

msrc_CVE-2023-2804

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2023-2804 · revision 1

Other

ProductStatusFixed inKB
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
CSAF MSRC advisory

msrc_CVE-2026-0102

LowExploitation Unlikely

Tracking ID msrc_CVE-2026-0102 · revision 1

Other

ProductStatusFixed inKB
Microsoft Edge (Chromium-based) <145.0.3800.58 known_affected 145.0.3800.58 —
Microsoft Edge (Chromium-based) 145.0.3800.58 fixed 145.0.3800.58 —
CSAF MSRC advisory

msrc_CVE-2026-0391

ModerateExploitation Less Likely

Tracking ID msrc_CVE-2026-0391 · revision 1

Other

ProductStatusFixed inKB
Microsoft Edge (Chromium-based) <143.0.3650.66 known_affected 143.0.3650.66 —
Microsoft Edge (Chromium-based) 143.0.3650.66 fixed 143.0.3650.66 —
CSAF MSRC advisory

msrc_CVE-2026-20841

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20841 · revision 4

Other

ProductStatusFixed inKB
Windows Notepad <11.2512 known_affected 11.2512 —
Windows Notepad 11.2512 fixed 11.2512 —
CSAF MSRC advisory

msrc_CVE-2026-20846

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-20846 · revision 1

Other

ProductStatusFixed inKB
Microsoft Office for Android <16.0.19822.20000 known_affected 16.0.19822.20000 113412
Microsoft Office for Android 16.0.19822.20000 fixed 16.0.19822.20000 —
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21218

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21218 · revision 1

Other

ProductStatusFixed inKB
.NET 10.0 installed on Linux <10.0.3 known_affected 10.0.3 5077862
.NET 10.0 installed on Linux 10.0.3 fixed 10.0.3 —
.NET 10.0 installed on Mac OS <10.0.3 known_affected 10.0.3 5077862
.NET 10.0 installed on Mac OS 10.0.3 fixed 10.0.3 —
.NET 10.0 installed on Windows <10.0.3 known_affected 10.0.3 5077862
.NET 10.0 installed on Windows 10.0.3 fixed 10.0.3 —
.NET 8.0 installed on Linux <8.0.24 known_affected 8.0.24 5077863
.NET 8.0 installed on Linux 8.0.24 fixed 8.0.24 —
.NET 8.0 installed on Mac OS <8.0.24 known_affected 8.0.24 5077863
.NET 8.0 installed on Mac OS 8.0.24 fixed 8.0.24 —
.NET 8.0 installed on Windows <8.0.24 known_affected 8.0.24 5077863
.NET 8.0 installed on Windows 8.0.24 fixed 8.0.24 —
.NET 9.0 installed on Linux <9.0.13 known_affected 9.0.13 5077864
.NET 9.0 installed on Linux 9.0.13 fixed 9.0.13 —
.NET 9.0 installed on Mac OS <9.0.13 known_affected 9.0.13 5077864
.NET 9.0 installed on Mac OS 9.0.13 fixed 9.0.13 —
.NET 9.0 installed on Windows <9.0.13 known_affected 9.0.13 5077864
.NET 9.0 installed on Windows 9.0.13 fixed 9.0.13 —
CSAF MSRC advisory

msrc_CVE-2026-21222

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21222 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21228

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21228 · revision 1

Other

ProductStatusFixed inKB
Azure Local <2510.0.3002 known_affected 2510.0.3002 —
Azure Local 2510.0.3002 fixed 2510.0.3002 —
CSAF MSRC advisory

msrc_CVE-2026-21229

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21229 · revision 1

Other

ProductStatusFixed inKB
Power BI Report Server <15.0.1120.113 known_affected 15.0.1120.113 —
Power BI Report Server 15.0.1120.113 fixed 15.0.1120.113 —
CSAF MSRC advisory

msrc_CVE-2026-21231

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21231 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21232

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21232 · revision 1

Other

ProductStatusFixed inKB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21234

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21234 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21235

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21235 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
CSAF MSRC advisory

msrc_CVE-2026-21236

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21236 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21237

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21237 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21238

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21238 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21239

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21239 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21240

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21240 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21241

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21241 · revision 1

Other

ProductStatusFixed inKB
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21242

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21242 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21243

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21243 · revision 1

Other

ProductStatusFixed inKB
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21244

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21244 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21245

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21245 · revision 2

Other

ProductStatusFixed inKB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21246

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21246 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21247

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21247 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21248

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21248 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21249

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21249 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21250

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21250 · revision 1

Other

ProductStatusFixed inKB
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21251

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21251 · revision 1

Other

ProductStatusFixed inKB
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21253

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21253 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21255

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21255 · revision 2

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21256

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21256 · revision 3

Other

ProductStatusFixed inKB
Microsoft Visual Studio 2022 version 17.14 <17.14.26 known_affected 17.14.26 —
Microsoft Visual Studio 2022 version 17.14 17.14.26 fixed 17.14.26 —
Microsoft Visual Studio 2026 version 18.3 <18.3.0 known_affected 18.3.0 —
Microsoft Visual Studio 2026 version 18.3 18.3.0 fixed 18.3.0 —
CSAF MSRC advisory

msrc_CVE-2026-21257

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21257 · revision 2

Other

ProductStatusFixed inKB
Microsoft Visual Studio 2022 version 17.14 <17.14.26 known_affected 17.14.26 —
Microsoft Visual Studio 2022 version 17.14 17.14.26 fixed 17.14.26 —
Microsoft Visual Studio 2026 version 18.3 <18.3.0 known_affected 18.3.0 —
Microsoft Visual Studio 2026 version 18.3 18.3.0 fixed 18.3.0 —
CSAF MSRC advisory

msrc_CVE-2026-21258

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21258 · 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) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Excel 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
Office Online Server <16.0.10417.20097 known_affected 16.0.10417.20097 5002835
Office Online Server 16.0.10417.20097 fixed 16.0.10417.20097 —
CSAF MSRC advisory

msrc_CVE-2026-21259

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21259 · 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) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Excel 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
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 —
Office Online Server <16.0.10417.20097 known_affected 16.0.10417.20097 5002835
Office Online Server 16.0.10417.20097 fixed 16.0.10417.20097 —
CSAF MSRC advisory

msrc_CVE-2026-21260

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21260 · 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 Outlook 2016 (32-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Outlook 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Outlook 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Outlook 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft SharePoint Enterprise Server 2016 <16.0.5539.1002 known_affected 16.0.5539.1002 5002841
Microsoft SharePoint Enterprise Server 2016 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft SharePoint Server 2019 <16.0.10417.20097 known_affected 16.0.10417.20097 5002834
Microsoft SharePoint Server 2019 16.0.10417.20097 fixed 16.0.10417.20097 —
Microsoft SharePoint Server Subscription Edition <16.0.19127.20518 known_affected 16.0.19127.20518 5002833
Microsoft SharePoint Server Subscription Edition 16.0.19127.20518 fixed 16.0.19127.20518 —
CSAF MSRC advisory

msrc_CVE-2026-21261

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21261 · 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) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Excel 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002837
Microsoft Excel 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
Office Online Server <16.0.10417.20097 known_affected 16.0.10417.20097 5002835
Office Online Server 16.0.10417.20097 fixed 16.0.10417.20097 —
CSAF MSRC advisory

msrc_CVE-2026-21508

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21508 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21510

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21510 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21511

ImportantExploitation More Likely

Tracking ID msrc_CVE-2026-21511 · revision 2

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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
Microsoft SharePoint Enterprise Server 2016 <16.0.5539.1002 known_affected 16.0.5539.1002 5002841
Microsoft SharePoint Enterprise Server 2016 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft SharePoint Server 2019 <16.0.10417.20097 known_affected 16.0.10417.20097 5002834
Microsoft SharePoint Server 2019 16.0.10417.20097 fixed 16.0.10417.20097 —
Microsoft SharePoint Server Subscription Edition <16.0.19127.20518 known_affected 16.0.19127.20518 5002833
Microsoft SharePoint Server Subscription Edition 16.0.19127.20518 fixed 16.0.19127.20518 —
Microsoft Word 2016 (32-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Word 2016 (32-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
Microsoft Word 2016 (64-bit edition) <16.0.5539.1002 known_affected 16.0.5539.1002 5002839
Microsoft Word 2016 (64-bit edition) 16.0.5539.1002 fixed 16.0.5539.1002 —
CSAF MSRC advisory

msrc_CVE-2026-21512

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21512 · revision 1

Other

ProductStatusFixed inKB
Azure DevOps Server 2022 <20260204.3 known_affected 20260204.3 20260204
Azure DevOps Server 2022 20260204.3 fixed 20260204.3 —
CSAF MSRC advisory

msrc_CVE-2026-21513

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21513 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21514

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21514 · 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 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2021 16.106.26020821 fixed 16.106.26020821 —
Microsoft Office LTSC for Mac 2024 <16.106.26020821 known_affected 16.106.26020821 831049
Microsoft Office LTSC for Mac 2024 16.106.26020821 fixed 16.106.26020821 —
CSAF MSRC advisory

msrc_CVE-2026-21516

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21516 · revision 1

Other

ProductStatusFixed inKB
GitHub Copilot Plugin for JetBrains IDEs <1.5.63 known_affected 1.5.63 933548
GitHub Copilot Plugin for JetBrains IDEs 1.5.63 fixed 1.5.63 —
CSAF MSRC advisory

msrc_CVE-2026-21517

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21517 · revision 2

Other

ProductStatusFixed inKB
Windows App for Mac <11.3.2 known_affected 11.3.2 868963
Windows App for Mac 11.3.2 fixed 11.3.2 —
CSAF MSRC advisory

msrc_CVE-2026-21518

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21518 · revision 3

Other

ProductStatusFixed inKB
Microsoft Visual Studio Code CoPilot Chat Extension <0.37.1 known_affected 0.37.1 —
Microsoft Visual Studio Code CoPilot Chat Extension 0.37.1 fixed 0.37.1 —
Visual Studio Code <1.110.1 known_affected 1.110.1 —
Visual Studio Code 1.110.1 fixed 1.110.1 —
CSAF MSRC advisory

msrc_CVE-2026-21519

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21519 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21522

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-21522 · revision 1

Other

ProductStatusFixed inKB
Microsoft ACI Confidential Containers <1.2.8 known_affected 1.2.8 —
Microsoft ACI Confidential Containers 1.2.8 fixed 1.2.8 —
CSAF MSRC advisory

msrc_CVE-2026-21523

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21523 · revision 3

Other

ProductStatusFixed inKB
Microsoft Visual Studio Code CoPilot Chat Extension <0.37.1 known_affected 0.37.1 —
Microsoft Visual Studio Code CoPilot Chat Extension 0.37.1 fixed 0.37.1 —
Visual Studio Code <1.110.1 known_affected 1.110.1 —
Visual Studio Code 1.110.1 fixed 1.110.1 —
CSAF MSRC advisory

msrc_CVE-2026-21525

ExploitedModerateExploitation Detected

Tracking ID msrc_CVE-2026-21525 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21527

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21527 · revision 1

Other

ProductStatusFixed inKB
Microsoft Exchange Server 2016 Cumulative Update 23 <15.01.2507.066 known_affected 15.01.2507.066 5074995
Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.066 fixed 15.01.2507.066 —
Microsoft Exchange Server 2019 Cumulative Update 14 <15.02.1544.039 known_affected 15.02.1544.039 5074994
Microsoft Exchange Server 2019 Cumulative Update 14 15.02.1544.039 fixed 15.02.1544.039 —
Microsoft Exchange Server 2019 Cumulative Update 15 <15.02.1748.043 known_affected 15.02.1748.043 5074993
Microsoft Exchange Server 2019 Cumulative Update 15 15.02.1748.043 fixed 15.02.1748.043 —
Microsoft Exchange Server Subscription Edition RTM <15.02.2562.037 known_affected 15.02.2562.037 5074992
Microsoft Exchange Server Subscription Edition RTM 15.02.2562.037 fixed 15.02.2562.037 —
CSAF MSRC advisory

msrc_CVE-2026-21528

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21528 · revision 2

Other

ProductStatusFixed inKB
Azure IoT Explorer <0.15.13 known_affected <0.15.13 —
Azure IoT Explorer 0.15.13 fixed 0.15.13 —
CSAF MSRC advisory

msrc_CVE-2026-21529

ImportantExploitation Unlikely

Tracking ID msrc_CVE-2026-21529 · revision 1

Other

ProductStatusFixed inKB
Azure HDInsight <5.1 known_affected 5.1 —
Azure HDInsight 5.1 fixed 5.1 —
CSAF MSRC advisory

msrc_CVE-2026-21531

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21531 · revision 1

Other

ProductStatusFixed inKB
Azure AI Language Authoring <1.0.0b4 known_affected 1.0.0b4 —
Azure AI Language Authoring 1.0.0b4 fixed 1.0.0b4 —
CSAF MSRC advisory

msrc_CVE-2026-21532

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-21532 · revision 1

Other

ProductStatusFixed inKB
Azure Functions fixed — —
CSAF MSRC advisory

msrc_CVE-2026-21533

ExploitedImportantExploitation Detected

Tracking ID msrc_CVE-2026-21533 · revision 1

Other

ProductStatusFixed inKB
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 1809 for x64-based Systems <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows 10 Version 1809 for x64-based Systems 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6937 known_affected 10.0.19044.6937 5075912
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6937 fixed 10.0.19044.6937 —
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6937 known_affected 10.0.19045.6937 5075912
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6937 fixed 10.0.19045.6937 —
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6649 known_affected 10.0.22631.6649 5075941
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6649 fixed 10.0.22631.6649 —
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7840 5077181
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.7840 known_affected 10.0.26100.7781 5077212
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.7840 fixed 10.0.26100.7840 —
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.7840 known_affected 10.0.26200.7840 5077181
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.7840 fixed 10.0.26200.7840 —
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows 11 version 26H1 for x64-based Systems <10.0.28000.1575 known_affected 10.0.28000.1575 5077179
Windows 11 version 26H1 for x64-based Systems 10.0.28000.1575 fixed 10.0.28000.1575 —
Windows Server 2012 <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2012 R2 <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23022 known_affected 6.3.9600.23022 5075970
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23022 fixed 6.3.9600.23022 —
Windows Server 2012 (Server Core installation) <6.2.9200.25923 known_affected 6.2.9200.25923 5075971
Windows Server 2012 (Server Core installation) 6.2.9200.25923 fixed 6.2.9200.25923 —
Windows Server 2016 <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2016 (Server Core installation) <10.0.14393.8868 known_affected 10.0.14393.8868 5075999
Windows Server 2016 (Server Core installation) 10.0.14393.8868 fixed 10.0.14393.8868 —
Windows Server 2019 <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2019 (Server Core installation) <10.0.17763.8389 known_affected 10.0.17763.8389 5075904
Windows Server 2019 (Server Core installation) 10.0.17763.8389 fixed 10.0.17763.8389 —
Windows Server 2022 <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.2149 known_affected 10.0.25398.2149 5075897
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.2149 fixed 10.0.25398.2149 —
Windows Server 2022 (Server Core installation) <10.0.20348.4773 known_affected 10.0.20348.4773 5075906
Windows Server 2022 (Server Core installation) 10.0.20348.4773 fixed 10.0.20348.4773 —
Windows Server 2025 <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 10.0.26100.32370 fixed 10.0.26100.32370 —
Windows Server 2025 (Server Core installation) <10.0.26100.32370 known_affected 10.0.26100.32370 5075899
Windows Server 2025 (Server Core installation) 10.0.26100.32370 fixed 10.0.26100.32370 —
CSAF MSRC advisory

msrc_CVE-2026-21537

ImportantExploitation Less Likely

Tracking ID msrc_CVE-2026-21537 · revision 1

Other

ProductStatusFixed inKB
Microsoft Defender for Endpoint for Linux <1.0.9.0 known_affected 1.0.9.0 —
Microsoft Defender for Endpoint for Linux 1.0.9.0 fixed 1.0.9.0 —
CSAF MSRC advisory

msrc_CVE-2026-23655

CriticalExploitation Less Likely

Tracking ID msrc_CVE-2026-23655 · revision 1

Other

ProductStatusFixed inKB
Microsoft ACI Confidential Containers <2.12 known_affected <2.12 —
Microsoft ACI Confidential Containers 2.12 fixed 2.12 —
CSAF MSRC advisory

msrc_CVE-2026-24300

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24300 · revision 1

Other

ProductStatusFixed inKB
Azure Front Door fixed — —
CSAF MSRC advisory

msrc_CVE-2026-24302

CriticalPublicly Disclosed:No;Exploited:No

Tracking ID msrc_CVE-2026-24302 · revision 2

Other

ProductStatusFixed inKB
Azure ARC fixed — —
CSAF MSRC advisory

msrc_CVE-2026-26119

CriticalExploitation More Likely

Tracking ID msrc_CVE-2026-26119 · revision 1

Other

ProductStatusFixed inKB
Windows Admin Center <2.6.4 known_affected 2.6.4 —
Windows Admin Center 2.6.4 fixed 2.6.4 —
CSAF MSRC advisory

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