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CVE-2021-38645: Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability

criticalknown exploitedCVE-2021-38645
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.

CSIRTS triage

vendor: Microsoftproduct: Open Management Infrastructure (OMI)Privilege escalation
What
Microsoft OMI within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.
Who is affected
Deployments of Microsoft OMI are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patches for OMI.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-38645

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-38645coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Open Management

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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