Windows Update Stack Elevation of Privilege Vulnerability
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-81963US | high7.8OT critical | KEV | ||
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally. | ||||
references
External citations — patches, advisories, analysis.
remediations (10)
- FixedWindows 11 Version 23H2 for ARM64-based Systems
10.0.22631.7582:Security Update:https://support.microsoft.com/help/5122880
https://support.microsoft.com/help/5122880 - FixedWindows 11 Version 23H2 for x64-based Systems
10.0.22631.7582:Security Update:https://support.microsoft.com/help/5122880
https://support.microsoft.com/help/5122880 - FixedWindows 11 Version 24H2 for ARM64-based Systems
10.0.26100.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008 - FixedWindows 11 Version 24H2 for x64-based Systems
10.0.26100.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008 - FixedWindows 11 Version 25H2 for ARM64-based Systems
10.0.26200.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008 - FixedWindows 11 Version 25H2 for x64-based Systems
10.0.26200.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008 - FixedWindows 11 Version 26H1 for ARM64-based Systems
10.0.28000.2954:Security Update:https://support.microsoft.com/help/5124012
https://support.microsoft.com/help/5124012 - FixedWindows 11 version 26H1 for x64-based Systems
10.0.28000.2954:Security Update:https://support.microsoft.com/help/5124012
https://support.microsoft.com/help/5124012 - FixedWindows Server 2025
10.0.26100.33438:Security Update:https://support.microsoft.com/help/5122871
https://support.microsoft.com/help/5122871 - FixedWindows Server 2025 (Server Core installation)
10.0.26100.33438:Security Update:https://support.microsoft.com/help/5122871
https://support.microsoft.com/help/5122871
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