{"id":"CVE-2026-84286","state":"PUBLISHED","title":"OOB Read/Write via Negative Array Index in exllamav3_ext Kernel Table","description":"ExLlamaV3’s EXL3 loader uses an untrusted, model-supplied index to select a CUDA kernel without first verifying that the index is within bounds. A malicious model can force the code to read and invoke an out‑of‑range function pointer, resulting in a reproducible crash. Under specific conditions involving certain host memory layouts, it may be possible for an attacker to exploit this vulnerability to achieve controlled indirect kernel dispatch during model load.","publishedAt":"2026-10-12T17:01:16.032Z","updatedAt":"2026-10-19T11:04:47.147Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"certcc","products":["Turboderp-org ExLlamaV3"],"affected":[{"vendor":"Turboderp-org","product":"ExLlamaV3","versions":[{"version":"3","status":"affected"}]}],"references":["https://kb.cert.org/vuls/id/369611","https://github.com/turboderp-org/exllamav3/pull/310","https://www.kb.cert.org/vuls/id/369611"],"weaknesses":["CWE-125","CWE-787","CWE-20"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/84xxx/CVE-2026-84286.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-84286","state":"PUBLISHED","datePublished":"2026-10-12T17:01:16.032Z","dateUpdated":"2026-10-19T11:04:47.147Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-09-01T15:47:57.172Z"},"containers":{"cna":{"title":"OOB Read/Write via Negative Array Index in exllamav3_ext Kernel Table","descriptions":[{"lang":"en","value":"ExLlamaV3’s EXL3 loader uses an untrusted, model-supplied index to select a CUDA kernel without first verifying that the index is within bounds. A malicious model can force the code to read and invoke an out‑of‑range function pointer, resulting in a reproducible crash. Under specific conditions involving certain host memory layouts, it may be possible for an attacker to exploit this vulnerability to achieve controlled indirect kernel dispatch during model load."}],"affected":[{"vendor":"Turboderp-org","product":"ExLlamaV3","versions":[{"version":"3","status":"affected"}]}],"references":[{"url":"https://kb.cert.org/vuls/id/369611"},{"url":"https://github.com/turboderp-org/exllamav3/pull/310"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-125 Out-of-bounds Read"}]},{"descriptions":[{"lang":"en","description":"CWE-787 Out-of-bounds Write"}]},{"descriptions":[{"lang":"en","description":"CWE-20 Improper Input Validation"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-10-12T17:06:12.603Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.50","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-84286"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.kb.cert.org/vuls/id/369611"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-12T17:14:02.436Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-19T11:04:41.538596Z","id":"CVE-2026-84286","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","type":"CWE","lang":"en","description":"CWE-125 Out-of-bounds Read"},{"cweId":"CWE-787","type":"CWE","lang":"en","description":"CWE-787 Out-of-bounds Write"},{"cweId":"CWE-20","type":"CWE","lang":"en","description":"CWE-20 Improper Input Validation"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-19T11:04:47.147Z"}}]}}}