CVE-2026-122113
Last modified
CVE-2026-122113 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. A vulnerability in Realtek's RtUsbA64.sys USB audio driver allows a physically present attacker using a maliciously crafted USB device to trigger unbounded recursion in the driver's topology-parsing logic during device enumeration. Processing the crafted descriptor exhausts the kernel stack and causes a system crash (bugcheck), resulting in a denial of service. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
A vulnerability in Realtek's RtUsbA64.sys USB audio driver allows a physically present attacker using a maliciously crafted USB device to trigger unbounded recursion in the driver's topology-parsing logic during device enumeration. Processing the crafted descriptor exhausts the kernel stack and causes a system crash (bugcheck), resulting in a denial of service. No authenticated user session is required.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Realtek | RtUsbA64.sys | 6.3.9600.2393 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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