CVE-2026-21732
Received
Received - Intake
Out-of-Bounds Write in GPU Shader Compiler Causes Crash
Vulnerability report for CVE-2026-21732, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-03-20
Last updated on: 2026-04-21
Assigner: imaginationtech
Description
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.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| imaginationtech | ddk | 1.17 |
| imaginationtech | ddk | 1.18 |
| imaginationtech | ddk | 23.2 |
| imaginationtech | ddk | From 24.1 (inc) to 25.1 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-823 | The product performs pointer arithmetic on a valid pointer, but it uses an offset that can point outside of the intended range of valid memory locations for the resulting pointer. |
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
