{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21732","assignerOrgId":"367425dc-4d06-4041-9650-c2dc6aaa27ce","state":"PUBLISHED","assignerShortName":"imaginationtech","dateReserved":"2026-01-05T11:57:27.257Z","datePublished":"2026-03-20T22:48:42.695Z","dateUpdated":"2026-03-23T15:03:50.302Z"},"containers":{"cna":{"providerMetadata":{"orgId":"367425dc-4d06-4041-9650-c2dc6aaa27ce","shortName":"imaginationtech","dateUpdated":"2026-03-20T22:48:42.695Z"},"title":"GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-823","description":"CWE-823: Use of Out-of-range Pointer Offset (4.16)","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-113","descriptions":[{"lang":"en","value":"CAPEC-113: Interface Manipulation (Version 3.9)"}]}],"affected":[{"vendor":"Imagination Technologies","product":"Graphics DDK","platforms":["Linux","Android"],"versions":[{"status":"unaffected","version":"1.17 RTM","versionType":"custom"},{"status":"unaffected","version":"1.18 RTM","versionType":"custom"},{"status":"affected","version":"23.2 RTM","versionType":"custom"},{"status":"affected","version":"24.1 RTM","lessThanOrEqual":"25.1 RTM","versionType":"custom"},{"status":"unaffected","version":"25.2 RTM","versionType":"custom"}],"defaultStatus":"unknown"}],"descriptions":[{"lang":"en","value":"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.\n\n\n\nAn 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.","supportingMedia":[{"type":"text/html","base64":false,"value":"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.\n<br>\n<br>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."}]}],"references":[{"url":"https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":9.6,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-03-23T15:03:27.343812Z","id":"CVE-2026-21732","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-23T15:03:50.302Z"}}]}}