CVE-2023-29336: Microsoft Win32K Privilege Escalation Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2023-05-09. EPSS: 41.2% chance of exploitation in the next 30 days.

Win32k Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1507: before 10.0.10240.19926 (fixed in 10.0.10240.19926)
• Microsoft Windows 10 1607: before 10.0.14393.5921 (fixed in 10.0.14393.5921)
• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: affected versions not specified

Published 2023-05-09. Last modified 2026-06-17.