What’s Vulnerable › Vulnerabilities
CVE-2026-21734: GPU DDK - libusc OOB write at TreeRemove during WebGPU shader compilation
- Severity: high (CVSS 7.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-26 · updated 2026-10-25
- Weakness: CWE-823
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
- Imagination Technologies Graphics DDK: through 25.2; 25.3-rtm
References
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