CVE-2021-38647 Microsoft CVE debrief

Who should care

Administrators and security teams responsible for Microsoft Open Management Infrastructure (OMI) deployments, especially those tracking CISA KEV items or ransomware risk.

Technical summary

The official record identifies this issue as a remote code execution vulnerability in Microsoft Open Management Infrastructure (OMI). The CISA KEV entry confirms it is known to be exploited in the wild and associates it with known ransomware campaign use. No additional technical details are provided in the supplied corpus.

Defensive priority

Urgent. This CVE is in CISA’s Known Exploited Vulnerabilities catalog, has known ransomware campaign use, and carried a CISA due date of 2021-11-17 for remediation.

Recommended defensive actions

• Apply the vendor-recommended updates for Microsoft Open Management Infrastructure (OMI) as soon as possible.
• Prioritize any exposed or externally reachable OMI deployments for immediate remediation.
• Verify whether OMI systems are present in your environment and confirm they are covered by patch management.
• Use the CISA KEV catalog as a trigger for incident response review and remediation tracking.
• Reassess compensating controls and monitoring around systems running OMI until updates are applied.

Evidence notes

Source corpus shows the CVE record, the official CVE/NVD references, and the CISA KEV entry. CISA metadata states: vendorProject Microsoft, product Open Management Infrastructure (OMI), vulnerabilityName Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability, dateAdded 2021-11-03, dueDate 2021-11-17, knownRansomwareCampaignUse Known, and requiredAction Apply updates per vendor instructions.

Official resources