Vulnerability · Published Jun 26, 2026 · Assigned by imaginationtech
CVE-2026-21734GPU DDK - libusc OOB write at TreeRemove during WebGPU shader compilation
High 7.7
In plain English
A high-severity security flaw 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
A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. An edge case using a very small value in GPU shader code can cause a segmentation fault in the GPU shader compiler due to am out-of-bounds write.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM23.2 RTM24.1 RTM – through 24.2 RTM25.1 RTM – through 25.3 RTM |
Weakness: CWE-823 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H