Local privilege escalation through undisclosed kernel flaw
Published Jun 8, 2021 · Updated Aug 3, 2024
Elevation of privilege in the Microsoft Windows Kernel allows local users on affected Windows 10 and Server builds to gain elevated privileges. Microsoft has not published the vulnerable kernel locus or the operation it performs incorrectly. Exploitation requires low-privilege local access and no user interaction, and successful exploitation grants control beyond the initiating account.
Summary
What happened
Elevation of privilege in the Microsoft Windows Kernel allows local users on affected Windows 10 and Server builds to gain elevated privileges. Microsoft has not published the vulnerable kernel locus or the operation it performs incorrectly. Exploitation requires low-privilege local access and no user interaction, and successful exploitation grants control beyond the initiating account.
The record
- CVE
- CVE-2021-31951
- Published
- Jun 8, 2021
- Updated
- Aug 3, 2024
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 8, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record 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=10.0.0 <10.0.17763.1999
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
Technologies
Your stack
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Your stack
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