Local privilege escalation via buffer over-read
Published Apr 9, 2024 · Updated May 3, 2025
Buffer over-read in the Windows USB Print Driver in affected Microsoft Windows releases allows local users to elevate privileges. The driver reads beyond a buffer boundary, while NIST additionally identifies improper synchronization of a shared resource; no affected function or input path is public. Exploitation requires low privileges and a difficult local race, and Microsoft does not identify the resulting privilege level.
Summary
What happened
Buffer over-read in the Windows USB Print Driver in affected Microsoft Windows releases allows local users to elevate privileges. The driver reads beyond a buffer boundary, while NIST additionally identifies improper synchronization of a shared resource; no affected function or input path is public. Exploitation requires low privileges and a difficult local race, and Microsoft does not identify the resulting privilege level.
The record
- CVE
- CVE-2024-26243
- Published
- Apr 9, 2024
- Updated
- May 3, 2025
- Vendor
- Microsoft
- Product
- Windows 11 version 21H2
- Classifications
- CWE-126, CWE-362, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 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=10.0.0 <10.0.22000.2899
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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