CVE-2021-38647VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2021-38647: Microsoft Open Management Infrastructure (OMI) Remote Code Execution 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
Ransomware: Used in ransomware campaigns
EPSS: 99.9% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2021-38647 (opens in a new tab)

Description

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions has a remote code execution vulnerability (CVE-2021-38647). This vulnerability is known to be exploited in the wild and has been used in ransomware campaigns. The specific technical details of the vulnerability are unspecified in the provided data.

Summary

CVE-2021-38647 is a remote code execution vulnerability in Microsoft Open Management Infrastructure (OMI), a component used within Azure VM Management Extensions. The vulnerability allows an attacker to execute arbitrary code remotely. It has been exploited in the wild and is associated with ransomware campaigns. No specific affected versions or patch information is provided in the input data.

Impact

Successful exploitation of this vulnerability allows remote attackers to execute arbitrary code on affected systems, potentially leading to full system compromise. The vulnerability has been actively exploited in the wild and used in ransomware campaigns, indicating significant real-world impact.

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 closely and apply any updates or mitigations recommended by Microsoft. Due to active exploitation, prioritize investigation and containment measures.

Weaknesses

CWE-1390Unclassified weakness (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 09:20:10 UTC

Weaknesses

References

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