High severity · published Oct 27, 2026
CVE-2024-58400
llama.cpp before b3701 Out-of-Bounds Read in llama_decode via Token IDs
New
8.2
CVSS
0.4%
EPSS
No
On KEV
Description
llama.cpp before b3701 contains an out-of-bounds read vulnerability in llama_decode_internal and llama_encode_internal that allows remote unauthenticated attackers to read memory by supplying unvalidated token IDs. Attackers can send integer-array prompts to the llama-server /completion endpoint with IDs outside 0 to n_vocab to read embedding memory out of bounds or crash the process.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LL
llama.cpp · ggml-org
before b3701 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-58400
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-58400
github.com
https://github.com/ggml-org/llama.cpp/blob/b3681/examples/server/server.cpp#L789
github.com
https://github.com/ggml-org/llama.cpp/commit/eae597182cb61bbde0b26e7cec5999d28b9327fe
github.com
https://github.com/ggml-org/llama.cpp/commit/faf69d4237c9ae4d7f572b4674d1002463e8acd3
github.com
https://github.com/ggml-org/llama.cpp/pull/9359
github.com
https://github.com/ggml-org/llama.cpp/releases/tag/b3701
www.vulncheck.com
https://www.vulncheck.com/advisories/llama-cpp-before-b3701-out-of-bounds-read-in-llama-decode-via-token-ids
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