Windows CVE-2026-20920
HIGHCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
AnalysisAI
Windows Win32K use-after-free vulnerability in ICOMP affects Windows 11 23h2 and Windows Server 2022 23h2, enabling authenticated local attackers to achieve privilege escalation with high impact on confidentiality, integrity, and availability. Currently no patch is available, and exploitation requires local access with user-level privileges.
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RemediationAI
Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.
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