Local privilege escalation through undisclosed NTFS flaw
Published Dec 15, 2021 · Updated Nov 18, 2024
NTFS privilege escalation in affected Microsoft Windows releases allows local users to gain elevated privileges via an undisclosed flaw. Microsoft has not published the affected NTFS code path or the operation it performs incorrectly on attacker-controlled input. Successful exploitation requires existing low-privileged local access and grants high-impact control over the affected host.
Summary
What happened
NTFS privilege escalation in affected Microsoft Windows releases allows local users to gain elevated privileges via an undisclosed flaw. Microsoft has not published the affected NTFS code path or the operation it performs incorrectly on attacker-controlled input. Successful exploitation requires existing low-privileged local access and grants high-impact control over the affected host.
The record
- CVE
- CVE-2021-43231
- Published
- Dec 15, 2021
- Updated
- Nov 18, 2024
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 15, 2021CVE publishedPublication date reported by the CVE source.
- Nov 18, 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 <10.0.17763.2366
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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