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{
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"state": "PUBLISHED",
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"dateReserved": "2026-08-04T20:17:18.298Z",
"datePublished": "2026-08-06T15:35:08.090Z",
"dateUpdated": "2026-11-08T14:08:32.070Z"
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},
"datePublic": "2026-05-06T00:00:00.000Z",
"title": "llama.cpp b1886–b7445 Integer Overflow via new_1batch() in llama-android.cpp",
"descriptions": [
{
"lang": "en",
"value": "llama.cpp builds b1886 through b7445 contain an integer overflow vulnerability in the LLaMA-Android JNI wrapper where the new_1batch() function multiplies sizeof(llama_seq_id) by an attacker-controlled n_seq_max parameter without overflow validation, causing heap buffer allocation to wrap and allocate insufficient memory. Attackers can exploit this by providing a crafted n_seq_max value through a malicious model file or JNI call to trigger heap corruption and achieve denial of service or arbitrary code execution on Android applications using the LLaMA-Android binding."
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"description": "Heap-based Buffer Overflow",
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"url": "https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-integer-overflow-via-new-1batch-in-llama-android-cpp",
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"credits": [
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"value": "Vladimir Tokarev (@G1ND1L4) - Vulnerability Research Tech Lead, Cyera",
"type": "finder"
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{
"lang": "en",
"value": "Ofek Itach (@ofekitach) - Security Research Team Lead, Cyera",
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