AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2026-27940

HIGH · CVSS 7.8 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-03-12 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-27940
Severity
HIGH
CVSS
7.8
EPSS
0.18%

Original NVD Description

llama.cpp is an inference of several LLM models in C/C++. Prior to b8146, the gguf_init_from_file_impl() in gguf.cpp is vulnerable to an Integer overflow, leading to an undersized heap allocation. Using the subsequent fread() writes 528+ bytes of attacker-controlled data past the buffer boundary. This is a bypass of a similar bug in the same file - CVE-2025-53630, but the fix overlooked some areas. This vulnerability is fixed in b8146.

Related CVEs

Other vulnerabilities affecting the same vendor(s)