Vulnerability Database

309,237

Total vulnerabilities in the database

CVE-2025-52566

llama.cpp is an inference of several LLM models in C/C++. Prior to version b5721, there is a signed vs. unsigned integer overflow in llama.cpp's tokenizer implementation (llama_vocab::tokenize) (src/llama-vocab.cpp:3036) resulting in unintended behavior in tokens copying size comparison. Allowing heap-overflowing llama.cpp inferencing engine with carefully manipulated text input during tokenization process. This issue has been patched in version b5721.

  • Published: Jun 24, 2025
  • Updated: Nov 16, 2025
  • CVE: CVE-2025-52566
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.6
  • AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H