CVE-2021-38649VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2021-38649: Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability

Affects Microsoft Open Management Infrastructure (OMI)Source CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 11/03/2021
KEV deadline: 11/17/2021
EPSS: 2.9% chance of exploitation in 30 days – higher than 86% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2021-38649 (opens in a new tab)

Description

CVE-2021-38649 is a high-severity privilege escalation vulnerability in Microsoft Open Management Infrastructure (OMI) used within Azure VM Management Extensions. The vulnerability allows an attacker to escalate privileges on affected systems. It has been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that enables privilege escalation. This vulnerability is identified as CVE-2021-38649 and has been observed to be exploited in the wild. The exact technical details and affected versions are not specified in the provided information.

Impact

Successful exploitation of this vulnerability allows an attacker to escalate privileges on the affected system, potentially gaining higher-level access than intended. This can lead to unauthorized actions and compromise of system integrity. The vulnerability has been exploited in the wild, indicating active threat use.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Microsoft advisories for updates and apply any released patches promptly. Until a fix is available, restrict access to OMI components and limit privileges where possible.

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 09:19:17 UTC

References

Related threats