What’s Vulnerable › Vulnerabilities
CVE-2026-45197: GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet
- Severity: low (CVSS 2.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-04 · updated 2026-09-08
- Weakness: CWE-367
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
- Imagination Technologies Graphics DDK: from 25.1 RTM2 through 25.3 RTM; 1.18 RTM2, 23.2 RTM2, 24.2 RTM2, 26.1 RTM1
References
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