# CVE-2026-105581

Local privilege escalation in Windows Desktop Window Manager via stack buffer overflow.

- Page: https://www.vulneraibility.com/cve/CVE-2026-105581
- CVSS: 8.8
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.36% (percentile 30.3)
- CISA SSVC: exploitation none, automatable no, technical impact total (assessed 2026-11-10)
- Weakness: CWE-121
- Published: 2026-11-10

## Affected versions

- Microsoft Windows 11 version 23H2: affected >= 10.0.22631.0 and < 10.0.22631.7711
- Microsoft Windows 11 Version 23H2: affected >= 10.0.22631.0 and < 10.0.22631.7711
- Microsoft Windows 11 Version 24H2: affected >= 10.0.26100.0 and < 10.0.26100.9974
- Microsoft Windows 11 Version 25H2: affected >= 10.0.26200.0 and < 10.0.26200.9974
- Microsoft Windows 11 version 26H1: affected >= 10.0.28000.0 and < 10.0.28000.3501
- Microsoft Windows 11 Version 26H2: affected >= 10.0.26300.0 and < 10.0.26300.9974
- Microsoft Windows Server 2022: affected >= 10.0.20348.0 and < 10.0.20348.5870
- Microsoft Windows Server 2025: affected >= 10.0.26100.0 and < 10.0.26100.33822
- Microsoft Windows Server 2025 (Server Core installation): affected >= 10.0.26100.0 and < 10.0.26100.33822

A version outside these ranges is not a statement that it is unaffected.

## Impact

Local attacker can trigger a stack-based buffer overflow in DWM to escalate privileges to SYSTEM or execute code with elevated rights.

## Action

Immediate action required

## Recommendation

Apply Microsoft security update from MSRC immediately; restrict local access until patched.

## References

- [patch] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105581

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.