CVE-2026-45197

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.

Scoring

Severity
LOW
CVSS base score
2.5
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS probability
0.07%
CWE
CWE-367
Published
2026-09-04
Last modified
2026-09-08

Affected products

Weakness type

Related vulnerabilities

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