{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-67873", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-12-12T18:53:03.237Z", "datePublished": "2025-12-17T21:12:13.739Z", "dateUpdated": "2025-12-18T15:09:19.484Z"}, "containers": {"cna": {"title": "Capstone doesn't check Skipdata length, leading to cs_insn.bytes heap buffer overflow", "problemTypes": [{"descriptions": [{"cweId": "CWE-122", "lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg"}, {"name": "https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3", "tags": ["x_refsource_MISC"], "url": "https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3"}], "affected": [{"vendor": "capstone-engine", "product": "capstone", "versions": [{"version": "<= 6.0.0-Alpha5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-12-17T21:12:13.739Z"}, "descriptions": [{"lang": "en", "value": "Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue."}], "source": {"advisory": "GHSA-hj6g-v545-v7jg", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-12-18T14:55:59.806611Z", "id": "CVE-2025-67873", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-18T15:09:19.484Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue."}], "id": "CVE-2025-67873", "lastModified": "2025-12-18T15:16:04.773", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 3.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-12-17T22:16:00.147", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3"}, {"source": "security-advisories@github.com", "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}