Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability
Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability that allows for privilege escalation.
- Vendor
- Microsoft
- Product
- Open Management Infrastructure (OMI)
- CVSS
- 7.8
- EPSS (exploit probability)
- 2.7%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2021-38645 being exploited?
Yes. CISA added CVE-2021-38645 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 2.7% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-13. Full cross-catalog view: /kev-comparison
CVE-2021-38645 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (14 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Microsoft Open Management Infrastructure (OMI) CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2021-38649 Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability | [ HIGH ] | 7.0 | 2.9% | |
| CVE-2021-38648 Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability | [ HIGH ] | 7.8 | 11.4% | |
| CVE-2021-38647 Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerabilityransomware use | [ CRITICAL ] | 9.8 | 99.9% |