SYSTEM privilege escalation via out-of-bounds read
Published Jan 9, 2024 · Updated May 3, 2025
Out-of-bounds read in Microsoft Common Log File System on affected Windows releases allows local users to gain SYSTEM privileges. Microsoft has not disclosed the CLFS parsing routine, malformed field, or memory object involved; the public record identifies only an out-of-bounds read. Exploitation requires local low-privileged access and no user interaction, and successful exploitation grants SYSTEM privileges.
Summary
What happened
Out-of-bounds read in Microsoft Common Log File System on affected Windows releases allows local users to gain SYSTEM privileges. Microsoft has not disclosed the CLFS parsing routine, malformed field, or memory object involved; the public record identifies only an out-of-bounds read. Exploitation requires local low-privileged access and no user interaction, and successful exploitation grants SYSTEM privileges.
The record
- CVE
- CVE-2024-20653
- Published
- Jan 9, 2024
- Updated
- May 3, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-125, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 9, 2024CVE publishedPublication date reported by the CVE source.
- May 3, 2025Record 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=10.0.10240.0 <10.0.10240.20402
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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