CVE-2026-45203

EUVD-2026-43043
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.
TOCTOU
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.42%
Affected Products (NVD)
VendorProductVersion
imaginationtechddk
𝑥
< 26.1
imaginationtechddk
26.1:rtm1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.imaginationtech.com/gpu-driver-vulnerabilities/