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VulnerabilityPublished

CVE-2026-90975: Realtek RtUsbA64.sys · Untrusted Pointer Dereference

Affects Realtek RtUsbA64.sysSource CVE Database V5

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Not known to be exploited.

Data as of 6 Nov 2026, 19:34 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
RealtekRtUsbA64.sysAffected
  • =6.3.9600.2393
Fixed in–

AI-suggested

Until an official fix is available, restrict local user access and monitor for suspicious activity related to the RtUsbA64.sys driver. Do not assume the vulnerability is mitigated without vendor confirmation.

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.

Reports on CVE-2026-90975

References

Community reviews

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