UBUNTU-CVE-2025-71439
- Source
- https://ubuntu.com/security/CVE-2025-71439
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-71439.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-71439
- Upstream
- Published
- 2026-10-27T01:19:00Z
- Modified
- 2026-10-28T20:16:32Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- 6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- 6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
llama.cpp before b5649 contains a heap out-of-bounds read vulnerability in llama_vocab::impl::print_info() that allows attackers to crash model loading via oversized special token IDs. Attackers can supply a crafted GGUF model with a short tokenizer.ggml.tokens array, causing llama-cli or llama-server to read past id_to_token and crash.
- References
-
- https://ubuntu.com/security/CVE-2025-71439
- https://www.cve.org/CVERecord?id=CVE-2025-71439
- https://github.com/cveproject/cvelistv5/tree/main/cves/2025/71xxx/cve-2025-71439.json
- https://github.com/ggml-org/llama.cpp/blob/b5648/src/llama-vocab.cpp#l2771
- https://github.com/ggml-org/llama.cpp/commit/c33fe8b8c4427202706b1434e9fc8ab5752c9cac
- https://github.com/ggml-org/llama.cpp/pull/14145
- https://github.com/ggml-org/llama.cpp/releases/tag/b5649
- https://github.com/ggml-org/llama.cpp/security/advisories/ghsa-g4cc-763q-h9h6
- https://nvd.nist.gov/vuln/detail/cve-2025-71439
- https://www.vulncheck.com/advisories/llama-cpp-before-b5649-heap-out-of-bounds-read-via-llama-vocab-impl-print-info
Affected packages
Ubuntu:26.10 / llama.cpp
Package
- Name
- llama.cpp
- Purl
- pkg:deb/ubuntu/llama.cpp?arch=source&distro=stonking
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Ecosystem specific
{
"binaries": [
{
"binary_name": "libllama0",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "llama.cpp",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "llama.cpp-examples",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "llama.cpp-services",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "llama.cpp-tests",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "llama.cpp-tools",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "llama.cpp-tools-extra",
"binary_version": "10438+dfsg-1ubuntu1"
},
{
"binary_name": "python3-gguf",
"binary_version": "10438+dfsg-1ubuntu1"
}
]
}
Ubuntu:26.04:LTS / llama.cpp
Package
- Name
- llama.cpp
- Purl
- pkg:deb/ubuntu/llama.cpp?arch=source&distro=resolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Ecosystem specific
{
"binaries": [
{
"binary_name": "libllama0",
"binary_version": "8681+dfsg-1"
},
{
"binary_name": "llama.cpp",
"binary_version": "8681+dfsg-1"
},
{
"binary_name": "llama.cpp-examples",
"binary_version": "8681+dfsg-1"
},
{
"binary_name": "llama.cpp-tests",
"binary_version": "8681+dfsg-1"
},
{
"binary_name": "llama.cpp-tools",
"binary_version": "8681+dfsg-1"
},
{
"binary_name": "llama.cpp-tools-extra",
"binary_version": "8681+dfsg-1"
},
{
"binary_name": "python3-gguf",
"binary_version": "8681+dfsg-1"
}
]
}