CVE-2022-41033

HIGH7.8

CISA KEV

Published 2022-10-11 · Updated 2026-06-17 · Source secure@microsoft.com

Summary

CVE-2022-41033 is a high-severity (CVSS 7.8) vulnerability in Microsoft Windows COM+ Event System Service. CISA added it to the Known Exploited Vulnerabilities catalog on October 11, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 1, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Windows COM+ Event System Service Elevation of Privilege Vulnerability

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-843CWE-843

CISA Known-Exploited Vulnerability

Product: Microsoft — Windows COM+ Event System Service

Name: Microsoft Windows COM+ Event System Service Privilege Escalation Vulnerability

Date added: 2022-10-11 · Due: 2022-11-01

Required action: Apply updates per vendor instructions.

References

View on NVD

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