CVE-2026-90975VulnerabilityPublished 6 Nov 2026

Realtek's RtUsbA64.sys USB audio driver

Source GCVE Database

Compare

Authoritative record:CVE-2026-90975· High

Not known to be exploited.

Data as of 6 Nov 2026, 22:43 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

Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-xpr9-5x5h-5rvp

What to do

Affected software

Product	Affected	Fixed in
RealtekRtUsbA64.sys	Affected =6.3.9600.2393	Fixed in–

Description

A vulnerability in Realtek's RtUsbA64.sys USB audio driver allows a local, low-privileged user to exploit a kernel I/O control interface that improperly handles user-mode pointers. This flaw enables the attacker to gain kernel-mode read and write access, potentially leading to local privilege escalation and arbitrary kernel code execution.

Impact

Successful exploitation allows a local, low-privileged user to gain kernel-mode read and write access, which can lead to local privilege escalation and arbitrary kernel code execution. This compromises system integrity and security by allowing attackers to execute code with elevated privileges.

Summary

The Realtek RtUsbA64.sys USB audio driver contains a vulnerability where a kernel I/O control (IOCTL) interface acts on a user-supplied pointer without proper validation or capture. A local attacker with low privileges can issue crafted property requests to abuse this interface, resulting in kernel-mode read and write capabilities. This can be leveraged to escalate privileges locally and execute arbitrary code in kernel mode.

References

Community reviews

Loading reviews…