What’s Vulnerable › Vulnerabilities
CVE-2026-21732: GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-20 · updated 2026-06-17
- 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 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.
Affected products
- Imagination Technologies Graphics DDK: from 24.1 through 25.1; 1.17, 1.18, 23.2
References
Get alerted when CVE-2026-21732 or the next vulnerability affects your stack