CVE-2021-38647

CRITICAL9.8

CISA KEV

Published 2021-09-15 · Updated 2026-08-10 · Source secure@microsoft.com

Summary

CVE-2021-38647 is a critical-severity (CVSS 9.8) vulnerability in Microsoft Open Management Infrastructure (OMI). CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 17, 2021. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA Known-Exploited Vulnerability

Product: Microsoft — Open Management Infrastructure (OMI)

Name: Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

Date added: 2021-11-03 · Due: 2021-11-17

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

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