# Open Management Infrastructure Elevation of Privilege Vulnerability

CVE record · `CVE-2021-38645`

- **Identifiers:** `CVE-2021-38645`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** Yes: KEV
- **CNA:** microsoft
- **Technologies:** [Microsoft Azure Automation State Configuration, DSC Extension](https://agentprime.io/advisories/technology/microsoft-azure-automation-state-configuration-dsc-extension.md) · [Microsoft Azure Automation Update Management](https://agentprime.io/advisories/technology/microsoft-azure-automation-update-management.md) · [Microsoft Azure Diagnostics (LAD)](https://agentprime.io/advisories/technology/microsoft-azure-diagnostics-lad.md) · [Microsoft Azure Security Center](https://agentprime.io/advisories/technology/microsoft-azure-security-center.md) · [Microsoft Azure Sentinel](https://agentprime.io/advisories/technology/microsoft-azure-sentinel.md) · [Microsoft Azure Stack Hub](https://agentprime.io/advisories/technology/microsoft-azure-stack-hub.md) · [Microsoft Container Monitoring Solution](https://agentprime.io/advisories/technology/microsoft-container-monitoring-solution.md) · [Microsoft Log Analytics Agent](https://agentprime.io/advisories/technology/microsoft-log-analytics-agent.md) · [Microsoft Open Management Infrastructure](https://agentprime.io/advisories/technology/microsoft-open-management-infrastructure.md) · [Microsoft System Center Operations Manager (SCOM)](https://agentprime.io/advisories/technology/microsoft-system-center-operations-manager-scom.md)
- **Published:** 15 Sept 2021
- **Updated:** 10 Aug 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: microsoft) at 15 Sept 2021, 11:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Critical

Critical, because:

- In CISA’s KEV catalogue since 3 Nov 2021: it is known to be exploited.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Microsoft. Product: Azure Automation State Configuration, DSC Extension.
  - affected: `2.0.0 to before DSC Agent versions: 2.71.1.25, 2.70.0.30, 3.0.0.3` (custom)
- Vendor: Microsoft. Product: Azure Automation Update Management.
  - affected: `1.0.0 to before OMS Agent for Linux GA v1.13.40-0` (custom)
- Vendor: Microsoft. Product: Azure Diagnostics (LAD).
  - affected: `3.0.0 to before LAD v4.0.13 and LAD v3.0.135` (custom)
- Vendor: Microsoft. Product: Azure Security Center.
  - affected: `1.0.0 to before OMS Agent for Linux GA v1.13.40-0` (custom)
- Vendor: Microsoft. Product: Azure Sentinel.
  - affected: `1.0.0 to before OMS Agent for Linux GA v1.13.40-0` (custom)
- Vendor: Microsoft. Product: Azure Stack Hub.
  - affected: `1.0.0 to before Monitor, Update and Config Mgmnt 1.14.01` (custom)
- Vendor: Microsoft. Product: Container Monitoring Solution.
  - affected: `1.0.0 to before publication` (custom)
- Vendor: Microsoft. Product: Log Analytics Agent.
  - affected: `1.0.0 to before OMS Agent for Linux GA v1.13.40-0` (custom)
- Vendor: Microsoft. Product: Open Management Infrastructure.
  - affected: `16.0 to before OMI Version 1.6.8-1` (custom)
- Vendor: Microsoft. Product: System Center Operations Manager (SCOM).
  - affected: `1.0.0 to before OMI version: 1.6.8-1` (custom)

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C`, from CNA (microsoft)

- **CISA KEV:** Listed since 3 Nov 2021: known to be exploited.
- **EPSS:** 0.027, the 86th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 15 Sept 2021. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2021-38645](https://www.cve.org/CVERecord?id=CVE-2021-38645)
- [NVD: CVE-2021-38645](https://nvd.nist.gov/vuln/detail/CVE-2021-38645)

### References from the CNA

- <https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38645> (vendor-advisory, patch)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2021-38645>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2021-38645/>. Everything for agents: <https://agentprime.io/llms.txt>.