{"id":"CVE-2026-21736","state":"PUBLISHED","title":"GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled","description":"Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.\n\nThis is caused by improper handling of the memory protections for the user-mode wrapped memory resource.","publishedAt":"2026-03-09T12:23:38.659Z","updatedAt":"2026-03-09T16:06:41.667Z","severity":{"score":4.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"imaginationtech","products":["Imagination Technologies Graphics DDK"],"affected":[{"vendor":"Imagination Technologies","product":"Graphics DDK","defaultStatus":"unknown","versions":[{"version":"1.17 RTM","status":"affected","versionType":"custom"},{"version":"1.18 RTM","status":"affected","versionType":"custom"},{"version":"23.2 RTM","status":"affected","versionType":"custom"},{"version":"24.1 RTM","status":"affected","lessThanOrEqual":"25.1 RTM","versionType":"custom"},{"version":"25.2 RTM","status":"unaffected","lessThanOrEqual":"25.3 RTM","versionType":"custom"},{"version":"26.1 RTM","status":"unaffected","versionType":"custom"}],"platforms":["Linux","Android"]}],"references":["https://www.imaginationtech.com/gpu-driver-vulnerabilities/"],"weaknesses":["CWE-280"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21736.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21736","state":"PUBLISHED","datePublished":"2026-03-09T12:23:38.659Z","dateUpdated":"2026-03-09T16:06:41.667Z","assignerShortName":"imaginationtech","assignerOrgId":"367425dc-4d06-4041-9650-c2dc6aaa27ce","dateReserved":"2026-01-05T11:57:27.258Z"},"containers":{"cna":{"title":"GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled","descriptions":[{"lang":"en","value":"Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.\n\nThis is caused by improper handling of the memory protections for the user-mode wrapped memory resource."}],"affected":[{"vendor":"Imagination Technologies","product":"Graphics DDK","defaultStatus":"unknown","versions":[{"version":"1.17 RTM","status":"affected","versionType":"custom"},{"version":"1.18 RTM","status":"affected","versionType":"custom"},{"version":"23.2 RTM","status":"affected","versionType":"custom"},{"version":"24.1 RTM","status":"affected","lessThanOrEqual":"25.1 RTM","versionType":"custom"},{"version":"25.2 RTM","status":"unaffected","lessThanOrEqual":"25.3 RTM","versionType":"custom"},{"version":"26.1 RTM","status":"unaffected","versionType":"custom"}],"platforms":["Linux","Android"]}],"references":[{"url":"https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-280","lang":"en","description":"CWE-280: Improper Handling of Insufficient Permissions or Privileges","type":"CWE"}]}],"providerMetadata":{"shortName":"imaginationtech","orgId":"367425dc-4d06-4041-9650-c2dc6aaa27ce","dateUpdated":"2026-03-09T12:23:38.659Z"},"impacts":[{"capecId":"CAPEC-679","descriptions":[{"lang":"en","value":"CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.4,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-03-09T16:06:38.819665Z","id":"CVE-2026-21736","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T16:06:41.667Z"}}]}}}