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CVE-2026-20811

Win32k Elevation of Privilege Vulnerability PUBLISHED

Description (CNA)

No English CNA description was supplied.

Affected (CNA)

Vendor / product	Versions
Microsoft / Windows 11 version 23H2	affected 10.0.22631.0 before 10.0.22631.6491
Microsoft / Windows 11 Version 23H2	affected 10.0.22631.0 before 10.0.22631.6491
Microsoft / Windows 11 Version 24H2	affected 10.0.26100.0 before 10.0.26100.7623
Microsoft / Windows 11 Version 25H2	affected 10.0.26200.0 before 10.0.26200.7623
Microsoft / Windows Server 2022	affected 10.0.20348.0 before 10.0.20348.4648
Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)	affected 10.0.25398.0 before 10.0.25398.2092
Microsoft / Windows Server 2025	affected 10.0.26100.0 before 10.0.26100.32230
Microsoft / Windows Server 2025 (Server Core installation)	affected 10.0.26100.0 before 10.0.26100.32230

CWE

CWE-843, CWE-822

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20811

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.