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7.8 High

CVE-2026-32155 Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally

Description

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

Affected products and versions

Product	Affected versions	Fixed in
Windows 10 Version 21H2 10.0	10.0.19044.0 → < 10.0.19044.7184	10.0.19044.7184
Windows 10 Version 22H2 10.0	10.0.19045.0 → < 10.0.19045.7184	10.0.19045.7184
Windows 11 version 22H3 10.0	10.0.22631.0 → < 10.0.22631.6936	10.0.22631.6936
Windows 11 Version 23H2 10.0	10.0.22631.0 → < 10.0.22631.6936	10.0.22631.6936
Windows 11 Version 24H2 10.0	10.0.26100.0 → < 10.0.26100.8246	10.0.26100.8246
Windows 11 Version 25H2 10.0	10.0.26200.0 → < 10.0.26200.8246	10.0.26200.8246
Windows Server 2022 10.0	10.0.20348.0 → < 10.0.20348.5020	10.0.20348.5020
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0	10.0.25398.0 → < 10.0.25398.2274	10.0.25398.2274
Windows Server 2025 10.0	10.0.26100.0 → < 10.0.26100.32690	10.0.26100.32690

Show the other branch

Product	Affected versions	Fixed in
Windows Server 2025 (Server Core installation) 10.0	10.0.26100.0 → < 10.0.26100.32690	10.0.26100.32690

References

Desktop Window Manager Elevation of Privilege Vulnerability msrc.microsoft.com

Timeline

Published April 14, 2026
Last modified October 15, 2026

The 4539 CVEs of Windows 10 Version 21H2 →

CVE-2026-108136 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.8 High CVE-2026-108135 Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to… 7.0 High CVE-2026-108132 Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally 7.0 High CVE-2026-108129 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network 6.5 Medium

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