Vulnerability · Published Sep 4, 2026 · Assigned by imaginationtech

CVE-2026-45197GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet

Low 2.5

In plain English

A low-severity security flaw in Graphics DDK from Imagination Technologies. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).

Severity (CVSS 3.1)2.5Low

Exploit odds (30 days)<0.1%top 99.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.

Affected products (as reported)

Vendor	Product	Versions
Imagination Technologies	Graphics DDK	1.18 RTM223.2 RTM224.2 RTM225.1 RTM2 – through 25.3 RTM26.1 RTM1

Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

References

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