Root privilege escalation by local users
Published Sep 15, 2021 · Updated Aug 10, 2026
Local privilege escalation in Microsoft OMI before 1.6.8-1 allows local users to obtain root privileges through an unspecified flaw. Microsoft has not published the affected code path or the incorrect operation performed on attacker-controlled input. Exploitation requires existing low-privilege access and high-complexity conditions, after which root access permits complete control of the host.
Summary
What happened
Local privilege escalation in Microsoft OMI before 1.6.8-1 allows local users to obtain root privileges through an unspecified flaw. Microsoft has not published the affected code path or the incorrect operation performed on attacker-controlled input. Exploitation requires existing low-privilege access and high-complexity conditions, after which root access permits complete control of the host.
The record
- CVE
- CVE-2021-38649
- Published
- Sep 15, 2021
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Sentinel
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 15, 2021CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0 <OMS Agent for Linux GA v1.13.40-0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
Technologies
Your stack
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Your stack
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