CVE-2024-38253: Microsoft Windows 11 21h2

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 11 21h2: before 10.0.22000.3197 (fixed in 10.0.22000.3197)
• Microsoft Windows 11 22h2: before 10.0.22621.4169 (fixed in 10.0.22621.4169)
• Microsoft Windows 11 23h2: before 10.0.22621.4169 (fixed in 10.0.22621.4169); before 10.0.22631.4169 (fixed in 10.0.22631.4169)
• Microsoft Windows 11 24h2: before 10.0.26100.1742 (fixed in 10.0.26100.1742)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.1128 (fixed in 10.0.25398.1128)

Published 2024-09-10. Last modified 2026-08-10.