CVE-2022-41033: Microsoft Windows COM+ Event System Service Privilege Escalation Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-10-11. EPSS: 1.9% chance of exploitation in the next 30 days.

Windows COM+ Event System Service Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1507: before 10.0.10240.19507 (fixed in 10.0.10240.19507)
• Microsoft Windows 10 1607: before 10.0.14393.5427 (fixed in 10.0.14393.5427)
• Microsoft Windows 10 1809: before 10.0.17763.3532 (fixed in 10.0.17763.3532)
• Microsoft Windows 10 20h2: before 10.0.19042.2130 (fixed in 10.0.19042.2130)
• Microsoft Windows 10 21h1: before 10.0.19043.2130 (fixed in 10.0.19043.2130)
• Microsoft Windows 10 21h2: before 10.0.19044.2130 (fixed in 10.0.19044.2130)
• Microsoft Windows 11 21h2: before 10.0.22000.1098 (fixed in 10.0.22000.1098)
• Microsoft Windows 11 22h2: before 10.0.22621.674 (fixed in 10.0.22621.674)
• 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 10.0.14393.5427 (fixed in 10.0.14393.5427)
• Microsoft Windows Server 2019: before 10.0.17763.3532 (fixed in 10.0.17763.3532)
• Microsoft Windows Server 2022: before 10.0.20348.1129 (fixed in 10.0.20348.1129)

Published 2022-10-11. Last modified 2026-06-17.