CVE-2026-69859

A time-of-check time-of-use (TOCTOU) race condition in the Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to exploit this vulnerability to elevate their privileges locally. This high-severity flaw poses significant risks to system integrity and should be prioritized by organizations using affected Windows systems, particularly those with users who have access to USB audio devices. Immediate patching and mitigation strategies are recommended to prevent potential exploitation.