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CVE-2022-41033 Microsoft CVE debrief

CVE-2022-41033 is a Microsoft Windows privilege escalation vulnerability affecting the COM+ Event System Service. CISA added it to the Known Exploited Vulnerabilities catalog on 2022-10-11 and set a remediation due date of 2022-11-01, indicating it should be treated as an urgent patching item. Because the source corpus does not provide a CVSS score, the strongest prioritization signal here is its inclusion in CISA KEV.

Vendor
Microsoft
Product
Windows COM+ Event System Service
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-10-11
Original CVE updated
2022-10-11
Advisory published
2022-10-11
Advisory updated
2022-10-11

Who should care

Windows administrators, endpoint security teams, vulnerability management owners, and incident response teams should prioritize this issue, especially in environments where Windows servers or workstations expose the COM+ Event System Service.

Technical summary

The available source material identifies this as a privilege escalation flaw in Microsoft Windows COM+ Event System Service. The CVE record and NVD entry confirm the vulnerability identity, while CISA’s KEV listing confirms it is known to be exploited and requires prompt remediation. The corpus does not provide additional technical detail such as attack vector, prerequisites, or affected versions, so patching guidance should follow Microsoft’s advisory for CVE-2022-41033.

Defensive priority

High. CISA KEV inclusion is a strong operational signal to expedite remediation, even though no CVSS score is provided in the supplied corpus.

Recommended defensive actions

  • Apply Microsoft’s updates for CVE-2022-41033 as soon as possible, following vendor instructions.
  • Use the CISA KEV due date (2022-11-01) as the latest acceptable remediation target, and treat earlier patching as preferred.
  • Inventory systems running Windows COM+ Event System Service and verify they are covered by the relevant Microsoft update.
  • Validate remediation through normal patch verification and vulnerability scanning after deployment.
  • Escalate systems that cannot be patched quickly for compensating controls and exception tracking.

Evidence notes

CISA’s KEV feed identifies this vulnerability as "Microsoft Windows COM+ Event System Service Privilege Escalation Vulnerability" with dateAdded 2022-10-11 and dueDate 2022-11-01, and the notes point to Microsoft’s update guide and the NVD entry. The supplied corpus does not include exploit details, affected versions, or a CVSS score, so no additional technical claims are made here.

Official resources

CVE published and modified: 2022-10-11. CISA KEV dateAdded: 2022-10-11. CISA KEV dueDate: 2022-11-01. No CVSS score was provided in the supplied corpus.