CVE-2026-21732
GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation
CRITICAL 9.6
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- imaginationtech
- NVD status
- Analyzed
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 large value in switch statements in GPU shader code can cause a segmentation fault in the GPU shader compiler due to an out-of-bounds write access.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | CRITICAL 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-13834
- GCVE · GCVE-0-2026-21732
CERT-FR advisories
- CERTFR-2026-AVI-1158 — Multiples vulnérabilités dans Google Android · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*≥ 24.1 ≤ 25.1cpe:2.3:a:imaginationtech:ddk:1.17:*:*:*:*:*:*:*cpe:2.3:a:imaginationtech:ddk:1.18:*:*:*:*:*:*:*cpe:2.3:a:imaginationtech:ddk:23.2:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Imagination Technologies · Graphics DDK | unaffected 1.17 RTM ; unaffected 1.18 RTM ; affected 23.2 RTM ; affected 24.1 RTM ≤ 25.1 RTM ; unaffected 25.2 RTM |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |