CVE-2021-38647

Microsoft Azure Automation State Configuration, DSC Extension, Microsoft Azure Automation Update Management, Microsoft Azure Diagnostics (LAD)

Published 15 Sept 2021 · updated 10 Aug 2026 · Analyzed

9.8 Critical · CVSS 3.1, microsoft.com

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, with a remediation deadline of 17 Nov 2021 for US federal agencies. It has been used in ransomware campaigns.

Required action: Apply updates per vendor instructions.

Description

Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38647 · Patch, Vendor Advisory
packetstormsecurity.com/files/164694/Microsoft-OMI-Management-Interface-Authentication-Bypass.html · Exploit, Third Party Advisory, VDB Entry
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38647 · Patch, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38647 · US Government Resource