CVE-2026-69859
Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege vulnerability
MSRC advisory September 8, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-69859
- Affected products
- Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege · Microsoft Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege · Microsoft
What happened
Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
What it means for your business
Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege vulnerability (CVE-2026-69859) was added to Microsoft’s security update guidance. Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally. If you need help checking exposure, call (864) 335-9223.
Sources
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