CVE-2026-70640

Katalog CVE

CVSS 7.0 · High EPSS 0,24%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada ggml llama.cpp. Skor CVSS 3.1 7.0 (High) menurut vulncheck.com.

Deskripsi (NVD)

llama.cpp builds b1886 through b7445 contain a race condition use-after-free vulnerability in the LLaMA-Android JNI wrapper where bench_1model() and free_1context() lack synchronization, allowing Thread A to operate on freed memory while Thread B concurrently frees the llama_context. Attackers can exploit this by performing heap spray with attacker-controlled data containing a fake vtable to hijack the vtable pointer at offset +0x30, causing llama_batch_allocr::clear() to dereference arbitrary memory and achieve remote code execution.

Rincian

Terbit di NVD

6 Agustus 2026

Terakhir diubah

21 September 2026

Status NVD

Analyzed

CVSS 3.1

7.0 (High), sumber vulncheck.com
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 13,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/ggml-org/llama.cpp/releases/tag/b7446 patch · release notes · advisory vendor
• https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches patch · advisory pihak ketiga
• https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388 patch
• https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-race-condition-use-after-free-via-llama-android-cpp exploit · advisory pihak ketiga