Vulnerability · Published Jul 24, 2026 · Assigned by imaginationtech
CVE-2026-49743GPU DDK - Write UAF of sync checkpoint in GPU kick function after export fence file descriptor is prematurely closed
High 7.8
In plain English
A high-severity use-after-free in Graphics DDK from Imagination Technologies. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Official description
Software installed and run as a non-privileged user may conduct improper GPU system calls to manipulate the lifetimes of synchronisation objects in the kernel, leading to read/write UAFs. During workload submission involving a fence exported by the GPU driver, the reference count of the underlying synchronisation primitive is not properly incremented. This can be exploited, by destroying the exported fence and prematurely release the underlying primitive, resulting in a potential use-after-free condition.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Imagination Technologies | Graphics DDK | 24.2 RTM225.1 RTM2 – through 25.3 RTM26.1 RTM1 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H