SYSTEM privilege escalation via out-of-bounds driver read
Published Nov 12, 2024 · Updated Jul 8, 2025
Out-of-bounds read in Microsoft's Windows USB Video Class driver allows physically proximate attackers to gain SYSTEM privileges. Microsoft identifies Usbvideo.sys as the affected class driver but has not disclosed which parsing operation reads beyond a buffer. Exploitation requires an unauthenticated attacker to connect a malicious USB device directly to the target machine.
Summary
What happened
Out-of-bounds read in Microsoft's Windows USB Video Class driver allows physically proximate attackers to gain SYSTEM privileges. Microsoft identifies Usbvideo.sys as the affected class driver but has not disclosed which parsing operation reads beyond a buffer. Exploitation requires an unauthenticated attacker to connect a malicious USB device directly to the target machine.
The record
- CVE
- CVE-2024-43643
- Published
- Nov 12, 2024
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-125, T1200, T1068
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 12, 2024CVE publishedPublication date reported by the CVE source.
- Jul 8, 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 <10.0.10240.20826
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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