{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71439", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-27T00:10:21.736Z", "datePublished": "2026-10-27T00:33:57.956Z", "dateUpdated": "2026-10-27T00:33:57.956Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-27T00:33:57.956Z"}, "datePublic": "2025-06-13T00:00:00.000Z", "title": "llama.cpp before b5649 Heap Out-of-Bounds Read via llama_vocab::impl::print_info", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125", "type": "CWE"}]}], "affected": [{"vendor": "ggml-org", "product": "llama.cpp", "defaultStatus": "unaffected", "packageURL": "pkg:github/ggml-org/llama.cpp", "versions": [{"version": "0", "status": "affected", "versionType": "custom", "lessThan": "b5649"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ggml:llama.cpp:*:*:*:*:*:*:*:*", "versionEndExcluding": "b5649"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/ggml-org/llama.cpp/security/advisories/GHSA-g4cc-763q-h9h6", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-g4cc-763q-h9h6)"}, {"url": "https://github.com/ggml-org/llama.cpp/pull/14145", "tags": ["patch", "issue-tracking"]}, {"url": "https://github.com/ggml-org/llama.cpp/commit/c33fe8b8c4427202706b1434e9fc8ab5752c9cac", "tags": ["patch"]}, {"url": "https://github.com/ggml-org/llama.cpp/blob/b5648/src/llama-vocab.cpp#L2771", "tags": ["technical-description"]}, {"url": "https://github.com/ggml-org/llama.cpp/releases/tag/b5649", "tags": ["release-notes"], "name": "llama.cpp b5649 Release Notes"}, {"name": "VulnCheck Advisory: llama.cpp before b5649 Heap Out-of-Bounds Read via llama_vocab::impl::print_info", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/llama-cpp-before-b5649-heap-out-of-bounds-read-via-llama-vocab-impl-print-info"}], "credits": [{"lang": "en", "value": "Miaoqian Lin (Yuuoniy)", "type": "finder"}, {"lang": "en", "value": "Jeongwoo Lee", "type": "reporter"}, {"lang": "en", "value": "ggerganov", "type": "remediation developer"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:github/ggml-org/llama.cpp", "product": "llama.cpp", "vendor": "ggml-org", "versions": [{"lessThan": "b5649", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2025-71439", "lastModified": "2026-10-27T15:59:46.587", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-10-27T01:19:03.470", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/ggml-org/llama.cpp/blob/b5648/src/llama-vocab.cpp#L2771"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/ggml-org/llama.cpp/commit/c33fe8b8c4427202706b1434e9fc8ab5752c9cac"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/ggml-org/llama.cpp/pull/14145"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/ggml-org/llama.cpp/releases/tag/b5649"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/ggml-org/llama.cpp/security/advisories/GHSA-g4cc-763q-h9h6"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/llama-cpp-before-b5649-heap-out-of-bounds-read-via-llama-vocab-impl-print-info"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,b5649)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "llama.cpp", "source": "cna", "vendor": "ggml-org"}, "product": "llama.cpp", "vendor": "ggml"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,b5649)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "llama.cpp", "source": "cna", "vendor": "ggml-org"}, "product": "llama.cpp", "vendor": "ggml-org"}], "created": "2026-10-27T06:30:12.716616+00:00", "updated": "2026-10-27T07:45:06.966423+00:00", "vendors": ["ggml", "ggml$PRODUCT$llama.cpp", "ggml-org", "ggml-org$PRODUCT$llama.cpp"]}