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.
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Affected Vendors & Products
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Solution
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References
History
Mon, 12 Oct 2026 19:30:00 +0000
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| Weaknesses | CWE-126 CWE-188 |
Mon, 12 Oct 2026 18:30:00 +0000
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| References |
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Mon, 12 Oct 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | OOB Read/Write via Negative Array Index in exllamav3_ext Kernel Table | |
| References |
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Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-10-12T17:14:02.436Z
Reserved: 2026-09-01T15:47:57.172Z
Link: CVE-2026-84286
No data.
Status : Received
Published: 2026-10-12T17:17:35.873
Modified: 2026-10-12T18:17:24.160
Link: CVE-2026-84286
No data.
OpenCVE Enrichment
Updated: 2026-10-12T19:15:14Z