CVE-2026-90975
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
ProductRtUsbA64.sys
PublishedNov 6, 2026
First seenNov 6, 2026
Weakness typeCWE-822CWE-822
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Realtek RtUsbA64.sys | 6.3.9600.2393 | — |
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