{"cve":"CVE-2026-47143","nvd":{"published":"2026-07-21T21:16:50.270","modified":"2026-10-24T19:10:00.127","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9},"cwes":["CWE-476"],"references":["https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f","https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7","https://github.com/capstone-engine/capstone/pull/2924","https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm","https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm"],"products":["capstone-engine:capstone"],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-47143","score":0.00468,"percentile":0.4022,"date":"2026-10-25"},"kev":null,"osv":[{"id":"PYSEC-2026-3544","url":"https://osv.dev/vulnerability/PYSEC-2026-3544","summary":"","modified":"2026-07-31T10:30:18.554773099Z","packages":[{"ecosystem":"PyPI","name":"capstone","purl":"pkg:pypi/capstone","ranges":["<5.0.8"],"fixed":["5.0.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}