CVE-2026-90975

Full vulnerability record from the local CVENow database.

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-06 19:17:59.147000

Last modified

2026-11-06 20:17:28.433000

View original CVE JSON

{
  "id": "CVE-2026-90975",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T19:17:59.147",
  "lastModified": "2026-11-06T20:17:28.433",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Realtek",
          "product": "RtUsbA64.sys",
          "versions": [
            {
              "version": "6.3.9600.2393",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-90975",
      "source": "[email protected]"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/701544",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}