Microsoft Win32k Privilege Escalation Vulnerability

Microsoft Win32k fails to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.

Published 22 Sep 2026Updated 22 Sep 2026330 sources
CVSS 7.8 PoC CANDIDATE△ CISA KEV

Source timeline

Discovered through CISA Known Exploited VulnerabilitiesView source ↗
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Added to CISA Known Exploited Vulnerabilities catalogView source ↗