CVE-2026-45197 — GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet
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 me…
Published: 2026-09-04 · CVSS: 2.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7