What’s Vulnerable › Vulnerabilities

CVE-2025-53630: Integer Overflow in GGUF Parser can lead to Heap Out-of-Bounds Read/Write in gguf

• Severity: high (CVSS 8.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-10 · updated 2026-06-17
• Weakness: CWE-122

Description

llama.cpp is an inference of several LLM models in C/C++. Integer Overflow in the gguf_init_from_file_impl function in ggml/src/gguf.cpp can lead to Heap Out-of-Bounds Read/Write. This vulnerability is fixed in commit 26a48ad699d50b6268900062661bd22f3e792579.

Affected products

• ggml-org llama.cpp: before 26a48ad699d50b6268900062661bd22f3e792579

References

• https://github.com/ggml-org/llama.cpp/commit/26a48ad699d50b6268900062661bd22f3e792579
• https://github.com/ggml-org/llama.cpp/security/advisories/GHSA-vgg9-87g3-85w8

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