Medium 5.5Published Aug 6, 2026

CVE-2026-70639llama.cpp b1886–b7445 Null Pointer Dereference DoS via llama-android.cpp

Updated under an hour ago (2026-10-19 11:23 UTC)

Does this affect you?

It affects ggml-org llama.cpp and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for ggml-org llama.cpp

Exploited in the last 30 days

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 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Aug 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ggml-org llama.cpp ggml_org:llama.cpp (from the name)	from b1886 through b7445; from 0.9.0 through 0.17.1; 5c0d18881e0e9794c96b2602736b758bac9d9388 not affected	CNA record
ggml llama.cpp ggml:llama.cpp	from b1886 through b7445	NVD

References

https://github.com/ggml-org/llama.cpp/releases/tag/b7446release-notes, patch, vendor-advisory
https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388patch
https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patchesrelated, patch, third-party-advisory
https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-null-pointer-dereference-dos-via-llama-android-cppthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.