CVE-2026-45197 - GPU DDK - TOCTOU affecting psFWMemContext-uiPageCatBaseRegSet
Brief
CVE ID : CVE-2026-45197
Published : Sept. 4, 2026, 2:17 a. m.
- 23 minutes ago
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.
Severity: 0.0
- NA
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