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.
History

Fri, 06 Nov 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Realtek
Realtek rtusba64.sys
Vendors & Products Realtek
Realtek rtusba64.sys

Fri, 06 Nov 2026 19:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-673

Fri, 06 Nov 2026 18:45:00 +0000

Type Values Removed Values Added
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.
Title CVE-2026-122113
References

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2026-11-06T18:36:59.863Z

Updated: 2026-11-06T18:36:59.863Z

Reserved: 2026-11-04T17:36:59.444Z

Link: CVE-2026-122113

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T19:17:43.590

Modified: 2026-11-06T19:17:43.590

Link: CVE-2026-122113

cve-icon Redhat

No data.