Windows
CVE-2026-20811
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Access of resource using incompatible type ('type confusion') in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Win32K (ICOMP) via type confusion allows authenticated users to gain system-level access on Windows 11 and Windows Server 2025. The vulnerability affects multiple recent Windows versions with no available patch, requiring immediate mitigation strategies for at-risk environments. Exploitation requires local access but no user interaction, making it a significant risk for multi-user systems.
Technical ContextAI
Affects Windows 11 23H2. Access of resource using incompatible type ('type confusion') in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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External POC / Exploit Code
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