llama.cpp — Rce (CVE-2026-33298)
Date: 2026-03
Affected: ggml/llama.cpp
Attack vector: rce
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-33298
CWE: CWE-122
CWE-190
CVSS: 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

llama.cpp is an inference of several LLM models in C/C++. Prior to b7824, an integer overflow vulnerability in the `ggml_nbytes` function allows an attacker to bypass memory validation by crafting a GGUF file with specific tensor dimensions. This causes `ggml_nbytes` to return a significantly smaller size than required (e.g., 4MB instead of Exabytes), leading to a heap-based buffer overflow when the application subsequently processes the tensor. This vulnerability allows potential Remote Code Execution (RCE) via memory corruption. b7824 contains a fix.


Mitigations:

Architectural layers (MAESTRO):