CVE-2026-70639
mediumllama.cpp builds b1886 through b7445 contain a null pointer dereference vulnerability in the LLaMA-Android JNI wrapper where the bench_1model() function fails…
Vendor / product: Ggml — llama.cpp
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.
CVSS
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-08-06 22:18
Modified: 2026-10-29 21:17
NVD status: Analyzed
Last synced 9 hours ago
Verified against the source API 2026-10-29 21:28 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
ggml / llama.cpp ≥b1886 ≤b7445
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://github.com/ggml-org/llama.cpp/releases/tag/b7446
Patch / mitigation: https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches
Patch / mitigation: https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388
Patch / mitigation: https://github.com/ggml-org/llama.cpp/releases/tag/b7446
References
- https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches disclosure@vulncheck.com
- https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388 disclosure@vulncheck.com
- https://github.com/ggml-org/llama.cpp/releases/tag/b7446 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-null-pointer-dereference-dos-vi... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-29 21:28 UTC · record ↗