CVEs / CVE-2021-38647
CVE-2021-38647: Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- high 7.5 CVSS 2.0 (NVD)
- EPSS 99.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing remote code execution.
Description
Open Management Infrastructure (OMI) Remote Code Execution Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Azure Automation State Configuration, DSC Extension | from 2.0.0, before DSC Agent versions: 2.71.1.25, 2.70.0.30, 3.0.0.3 | DSC Agent versions: 2.71.1.25, 2.70.0.30, 3.0.0.3 |
| Microsoft Azure Automation Update Management | from 1.0.0, before OMS Agent for Linux GA v1.13.40-0 | OMS Agent for Linux GA v1.13.40-0 |
| Microsoft Azure Diagnostics (LAD) | from 3.0.0, before LAD v4.0.13 and LAD v3.0.135 | LAD v4.0.13 and LAD v3.0.135 |
| Microsoft Azure Security Center | from 1.0.0, before OMS Agent for Linux GA v1.13.40-0 | OMS Agent for Linux GA v1.13.40-0 |
| Microsoft Azure Sentinel | from 1.0.0, before OMS Agent for Linux GA v1.13.40-0 | OMS Agent for Linux GA v1.13.40-0 |
| Microsoft Azure Stack Hub | from 1.0.0, before Monitor, Update and Config Mgmnt 1.14.01 | Monitor, Update and Config Mgmnt 1.14.01 |
| Microsoft Container Monitoring Solution | from 1.0.0, before publication | publication |
| Microsoft Log Analytics Agent | from 1.0.0, before OMS Agent for Linux GA v1.13.40-0 | OMS Agent for Linux GA v1.13.40-0 |
| Microsoft Open Management Infrastructure | from 16.0, before OMI Version 1.6.8-1 | OMI Version 1.6.8-1 |
| Microsoft System Center Operations Manager (SCOM) | from 1.0.0, before OMI version: 1.6.8-1 | OMI version: 1.6.8-1 |
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 17 Nov 2021 |
| Used in ransomware campaigns | Known |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 2.0 | 7.5 highAV:N/AC:L/Au:N/C:P/I:P/A:PScored by NVD |
|---|
References
- CVE-2021-38647 on NVD
- CVE-2021-38647 in the CISA KEV catalog
- CVE-2021-38647 on OSV
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38647 Patch, Vendor Advisory
- http://packetstormsecurity.com/files/164694/Microsoft-OMI-Management-Interface-Authentication-Bypass.html Exploit, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38647 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38647 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.