CVE-2026-122113
Received Received - Intake

Realtek RtUsbA64.sys USB Driver Stack Overflow

Publication date: 2026-11-06

Last updated on: 2026-11-06

Assigner: CERT/CC

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.

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Meta Information

Published
2026-11-06
Last Modified
2026-11-06
Generated
2026-11-06
EPSS Evaluated
N/A
NVD
CVE-2026-122113
EUVD
EUVD-2026-118417

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Realtek RtUsbA64.sys 6.3.9600.2393

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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