CVE-2026-47143

{"id": "CVE-2026-47143", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47143", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-22T13:42:44.951327Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.4}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "capstone-engine", "product": "capstone", "versions": [{"status": "affected", "version": "< 5.0.8"}, {"status": "affected", "version": "< 6.0.0-Alpha8"}]}]}], "published": "2026-07-21T21:16:50.270", "references": [{"url": "https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/capstone-engine/capstone/pull/2924", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "Capstone is a disassembly framework. Versions prior to 6.0.0-Alpha8 and 5.0.8 have a NULL pointer dereference in `modRMRequired()` and `decode()` when disassembling 3DNow! opcodes (`0F 0F`) in builds compiled with `-DCAPSTONE_X86_REDUCE`, allowing a remote attacker to crash any application using the reduced X86 Capstone library by supplying a crafted input containing the 4-byte sequence `0F 0F <modrm> <imm8>`. Versions 6.0.0-Alpha8 and 5.0.8 patch the issue."}], "lastModified": "2026-07-30T15:16:57.420", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:capstone-engine:capstone:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69CF4E4A-87DF-4504-BB90-4BB520E74A4D", "versionEndExcluding": "5.0.8"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "99F76525-F73B-4F66-AE46-A1ECAF0C7A0C"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "442C7F48-5BEE-4702-AC0F-DE5C70FAA93F"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3C88415A-376C-4F7F-9D7D-3CB5C8FB9346"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "67358CE5-F734-4E55-B021-D3AC5D937DD4"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DED59B8-DC00-4323-89FA-044F7666AF5D"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A575223A-D5D5-43DB-BDFD-993F829F7ED2"}, {"criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A82E2CC-0E0D-44F4-901D-CF7FBFAFA8C7"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}