llama.cpp tokenizer signed vs. unsigned heap overflow
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| ggml-org | llama.cpp | affected |
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No data available yet.
| Source | ID | Title |
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EUVD |
EUVD-2025-19074 | 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. |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.363% probability within 30 days)
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| First Time appeared |
Ggml
Ggml llama.cpp |
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| CPEs | cpe:2.3:a:ggml:llama.cpp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ggml
Ggml llama.cpp |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| Description | 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. | |
| Title | llama.cpp tokenizer signed vs. unsigned heap overflow | |
| Weaknesses | CWE-119 CWE-195 |
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| References |
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| Metrics |
cvssV3_1
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