CVE-2026-45203

HighCVSS 7.8/10Last modified Oct 25, 2026

Description

Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory write outside the permitted range of memory for the host kernel.

A TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-367

Affected software

No affected versions have been published.

Timeline

Published: Jul 10, 2026
Last modified: Oct 25, 2026
NVD status: Analyzed

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