High severity7.8NVD Advisory· Published Jul 10, 2026· Updated Aug 12, 2026
CVE-2026-45203
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.
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Affected products
3cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*range: <26.1
- cpe:2.3:a:imaginationtech:ddk:26.1:rtm1:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
1- www.imaginationtech.com/gpu-driver-vulnerabilities/nvdVendor Advisory
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