Integer overflow in Microsoft Windows and Windows Server - CVE-2026-69469
Published: September 8, 2026
Vulnerability identifier: #VU147722
CSH Severity: Medium
CVSS v4: 7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-69469
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker with physical access to elevate privileges.
The vulnerability exists due to integer overflow or wraparound in the Windows USB Audio Class driver (usbaudio.sys) when processing USB audio data. An attacker with physical access can perform a physical attack to elevate privileges.
User interaction is required. Successful exploitation could grant SYSTEM privileges.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-69469
Install security update from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7725, 10 22H2 10.0.19045.7725, 10 1809 10.0.17763.9245, 11 23H2 10.0.22631.7582, 11 24H2 10.0.26100.9445, 11 25H2 10.0.26200.9445, 11 26H1 10.0.28000.2954
Windows Server - addressed in versions 2019 10.0.17763.9245, 2022 10.0.20348.5622, 2025 10.0.26100.33438
Windows Server - addressed in versions 2019 10.0.17763.9245, 2022 10.0.20348.5622, 2025 10.0.26100.33438