CVE-2026-49794
MediumCVSS 4.6Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
A vulnerability in the Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information through a physical attack. The issue stems from an out-of-bounds read.
Risk Assessment
The organization is at risk of data leakage due to physical access to the device, which may lead to confidentiality breaches.
Recommendation
It is recommended to immediately apply the security update provided by the vendor for Windows and restrict physical access to devices.
Other vulnerabilities in Windows USB Audio Class driver
See all- CVE-2026-69859High
A 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.
- CVE-2026-69707High
Integer overflow or wraparound in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69687High
Integer underflow (wrap or wraparound) in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69571High
Heap-based buffer overflow in the Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69469Medium
An integer overflow or wraparound in the Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to elevate privileges with a physical attack.
- CVE-2026-69413High
Use after free in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69307High
Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69286Medium
A vulnerability in the Windows USB Audio Class driver (usbaudio.sys) causes an out-of-bounds read, allowing an authorized attacker to disclose information locally.
- CVE-2026-69270High
A heap-based buffer overflow in the Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-58528Medium
Out-of-bounds read in the Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information via a physical attack.
Original NVD description (English source)
Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS