CVE-2026-45203

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.

PUBLISHED Reserved 2026-05-11 | Published 2026-07-10 | Updated 2026-07-10 | Assigner imaginationtech

Problem types

CWE - CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition (4.20)

Product status

References

www.imaginationtech.com/gpu-driver-vulnerabilities/

cve.org (CVE-2026-45203)

nvd.nist.gov (CVE-2026-45203)

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