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Tracking
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| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-18632 | llama.cpp is an inference of several LLM models in C/C++. Prior to version b5662, an attacker‐supplied GGUF model vocabulary can trigger a buffer overflow in llama.cpp’s vocabulary‐loading code. Specifically, the helper _try_copy in llama.cpp/src/vocab.cpp: llama_vocab::impl::token_to_piece() casts a very large size_t token length into an int32_t, causing the length check (if (length < (int32_t)size)) to be bypassed. As a result, memcpy is still called with that oversized size, letting a malicious model overwrite memory beyond the intended buffer. This can lead to arbitrary memory corruption and potential code execution. This issue has been patched in version b5662. |
Wed, 27 Aug 2025 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Ggml
Ggml llama.cpp |
|
| CPEs | cpe:2.3:a:ggml:llama.cpp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ggml
Ggml llama.cpp |
Wed, 18 Jun 2025 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 17 Jun 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | llama.cpp Vulnerable to Buffer Overflow via Malicious GGUF Model |
Tue, 17 Jun 2025 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | llama.cpp is an inference of several LLM models in C/C++. Prior to version b5662, an attacker‐supplied GGUF model vocabulary can trigger a buffer overflow in llama.cpp’s vocabulary‐loading code. Specifically, the helper _try_copy in llama.cpp/src/vocab.cpp: llama_vocab::impl::token_to_piece() casts a very large size_t token length into an int32_t, causing the length check (if (length < (int32_t)size)) to be bypassed. As a result, memcpy is still called with that oversized size, letting a malicious model overwrite memory beyond the intended buffer. This can lead to arbitrary memory corruption and potential code execution. This issue has been patched in version b5662. | |
| Weaknesses | CWE-119 CWE-195 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-06-18T13:41:11.407Z
Reserved: 2025-06-11T14:33:57.800Z
Link: CVE-2025-49847
Updated: 2025-06-18T13:40:46.678Z
Status : Analyzed
Published: 2025-06-17T20:15:32.437
Modified: 2025-08-27T13:48:14.223
Link: CVE-2025-49847
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OpenCVE Enrichment
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EUVD