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Vulnerabilities

Vulnerability · CVE-2021-38645

Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability

Published Sep 15, 2021 · catalog updated Aug 10, 2026 · Microsoft Open Management Infrastructure (OMI)

Patch now

CVE-2021-38645 is in the CISA known-exploited catalog, due Nov 17, 2021. Confirm Microsoft Open Management Infrastructure (OMI) against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High7.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
2.73%
Remediation
Remediation guidance
Affected products
cpe microsoft/azure automation state configuration · cpe microsoft/azure automation update management · cpe microsoft/azure diagnostics (lad) · cpe microsoft/azure security center · cpe microsoft/azure sentinel · cpe microsoft/azure stack hub

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/azure automation state configurationversion unspecified
  • cpe microsoft/azure automation update managementversion unspecified
  • cpe microsoft/azure diagnostics (lad)version unspecified
  • cpe microsoft/azure security centerversion unspecified
  • cpe microsoft/azure sentinelversion unspecified
  • cpe microsoft/azure stack hubversion unspecified
  • cpe microsoft/container monitoring solutionversion unspecified
  • cpe microsoft/log analytics agentversion unspecified
  • vendor Microsoft Open Management Infrastructure (OMI)version unspecified

How to fix CVE-2021-38645

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-38645 is in the CISA known-exploited catalog, due Nov 17, 2021. Confirm Microsoft Open Management Infrastructure (OMI) against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

No weakness class is stored. EPSS 2.73%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 15, 2021 · Catalog

    Detected

    Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Nov 17, 2021 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Aug 10, 2026 · Catalog

    Updated

    Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

Sources

  • CISA KEVConfirmed exploitationCVE-2021-38645

    Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2021-38645

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-38645

    30-day exploitation probability 2.7%

    first.org
  • NIST NVDVulnerability recordCVE-2021-38645

    Open Management Infrastructure Elevation of Privilege Vulnerability

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2021-38645

    Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.