Privilege escalation via USB-triggered integer overflow
Published Sep 8, 2026 · Updated Sep 9, 2026
Integer overflow in the Windows USB Audio Class driver allows physically proximate attackers to elevate privileges through a crafted USB audio device. Microsoft has not disclosed the affected calculation or how untrusted USB audio data produces the heap-based overflow. Exploitation requires physical access and user interaction but no prior privileges, and successful exploitation compromises the affected host.
Summary
What happened
Integer overflow in the Windows USB Audio Class driver allows physically proximate attackers to elevate privileges through a crafted USB audio device. Microsoft has not disclosed the affected calculation or how untrusted USB audio data produces the heap-based overflow. Exploitation requires physical access and user interaction but no prior privileges, and successful exploitation compromises the affected host.
The record
- CVE
- CVE-2026-69469
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-190, CWE-122, T1068, T1200
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record 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=10.0.17763.0 <10.0.17763.9245
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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