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OpenAdvisories
High · 7.8 Exploitation more likely CVE-2026-33840 EUVD-2026-29586GHSA-5crp-h3g2-hwww

Win32k Elevation of Privilege Vulnerability

Published May 12, 2026 · Updated Aug 10, 2026 · Assigned by microsoft

Description

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

Affected products

VendorProductAffectedFixed
Microsoft Windows 11 Version 24H2 10.0.26100.0 – < 10.0.26100.8457 10.0.26100.8457
Microsoft Windows 11 Version 25H2 10.0.26200.0 – < 10.0.26200.8457 10.0.26200.8457
Microsoft Windows 11 version 26H1 10.0.28000.0 – < 10.0.28000.2113 10.0.28000.2113
Microsoft Windows Server 2025 10.0.26100.0 – < 10.0.26100.32860 10.0.26100.32860
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – < 10.0.26100.32860 10.0.26100.32860

Advisories 3

References