A vulnerability in Realtek's RtUsbA64.sys USB audio driver allows a local, low-privileged user to abuse a kernel I/O control (IOCTL) interface that acts on a caller-supplied user-mode pointer without proper validation or capture. By issuing crafted property requests an attacker can obtain kernel-mode read and write access, which can be leveraged for local privilege escalation and arbitrary kernel code execution.
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 20:30:00 +0000

Type Values Removed Values Added
References

Fri, 06 Nov 2026 20:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
CWE-20

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 local, low-privileged user to abuse a kernel I/O control (IOCTL) interface that acts on a caller-supplied user-mode pointer without proper validation or capture. By issuing crafted property requests an attacker can obtain kernel-mode read and write access, which can be leveraged for local privilege escalation and arbitrary kernel code execution.
Title CVE-2026-90975
References

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2026-11-06T18:36:42.089Z

Updated: 2026-11-06T19:11:47.406Z

Reserved: 2026-09-14T13:39:39.619Z

Link: CVE-2026-90975

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T19:17:59.147

Modified: 2026-11-06T20:17:28.433

Link: CVE-2026-90975

cve-icon Redhat

No data.