CVE-2026-45197 GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet
A race condition in the Android GPU driver allows a guest VM to read or write outside its virtualized memory, potentially compromising isolation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-45197?
CVE-2026-45197 is a low-severity vulnerability in Imagination Technologies Graphics DDK, published on 4 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-367
Which versions are affected by CVE-2026-45197?
How do I fix CVE-2026-45197?
Apply the vendor's patch.
Is CVE-2026-45197 being exploited?
There is no known exploitation of CVE-2026-45197 in the wild and no public exploit code.
Sources
Also known as A-505806500, ASB-A-505806500, GHSA-49pq-rgj7-q6mh.