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

Thu, 12 Nov 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 10 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-822
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


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: 2026-11-10T18:23:05.208Z

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

Link: CVE-2026-90975

cve-icon Vulnrichment

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

cve-icon NVD

Status : Received

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

Modified: 2026-11-10T19:21:35.977

Link: CVE-2026-90975

cve-icon Redhat

No data.