CVE-2022-37969: Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-09-14. EPSS: 28.3% chance of exploitation in the next 30 days.

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1507: before 10.0.10240.19444 (fixed in 10.0.10240.19444)
• Microsoft Windows 10 1607: before 10.0.14393.5356 (fixed in 10.0.14393.5356)
• Microsoft Windows 10 1809: before 10.0.17763.3406 (fixed in 10.0.17763.3406)
• Microsoft Windows 10 20h2: before 10.0.19042.2006 (fixed in 10.0.19042.2006)
• Microsoft Windows 10 21h1: before 10.0.19043.2006 (fixed in 10.0.19043.2006)
• Microsoft Windows 10 21h2: before 10.0.19044.2006 (fixed in 10.0.19044.2006)
• Microsoft Windows 11 21h2: before 10.0.22000.978 (fixed in 10.0.22000.978)
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows 8.1: affected versions not specified
• Microsoft Windows Rt 8.1: affected versions not specified
• 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: before 10.0.14393.5356 (fixed in 10.0.14393.5356)
• Microsoft Windows Server 2019: before 10.0.17763.3406 (fixed in 10.0.17763.3406)
• Microsoft Windows Server 2022: before 10.0.20348.1006 (fixed in 10.0.20348.1006)

Published 2022-09-13. Last modified 2026-09-10.