{"id":"CVE-2026-70639","revision":"b2ec41c5e0744e06aca0ef2d298a1ce8","records":[{"revision":"b2ec41c5e0744e06aca0ef2d298a1ce8","observedAt":"2026-10-29T22:48:55.035+00:00","statement":{"source":"cve-program","id":"CVE-2026-70639","aliases":[],"title":"llama.cpp b1886–b7445 Null Pointer Dereference DoS via llama-android.cpp","description":"llama.cpp builds b1886 through b7445 contain a null pointer dereference vulnerability in the LLaMA-Android JNI wrapper where the bench_1model() function fails to validate the model context pointer before dereferencing it. Attackers can supply a malicious, corrupt, or truncated model file to trigger a null context condition, causing a SIGSEGV crash that terminates the Android application process and results in denial of service.","state":0,"publishedAt":"2026-08-06T15:37:30.567+00:00","modifiedAt":"2026-10-29T21:16:33.556+00:00","affected":[{"ecosystem":"Vendor product","name":"llama.cpp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ggml-org\",\n                    \"product\": \"llama.cpp\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"b1886\",\n                            \"lessThanOrEqual\": \"b7445\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"5c0d18881e0e9794c96b2602736b758bac9d9388\",\n                            \"versionType\": \"git\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.8,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5,"severity":"MEDIUM"}],"references":["https://github.com/ggml-org/llama.cpp/releases/tag/b7446","https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388","https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches","https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-null-pointer-dereference-dos-via-llama-android-cpp"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-70639","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-70639","identifiers":["CVE-2026-70639"]},"retained":false,"historicalAffected":[]}],"coverage":[]}