Jan 2026: Win32k Elevation of Privilege Vulnerability
CVE-2026-20920 Published on January 13, 2026
Win32k Elevation of Privilege Vulnerability
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-20920 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-20920
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Affected Versions
Microsoft Windows 11 version 22H3:- Version 10.0.22631.0 and below 10.0.22631.6491 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6491 is affected.
- Version 10.0.20348.0 and below 10.0.20348.4648 is affected.
- Version 10.0.25398.0 and below 10.0.25398.2092 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.