{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.0.8"
              },
              {
                "fixed": "6.0.0-Alpha8"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "13f1decbc9181770e9211edb188c14f0699a41b6"
            },
            {
              "fixed": "32e7e6568be6d5774e8f31dd678b8828903769c7"
            },
            {
              "fixed": "a0201371719b5aaa91d318ab2898843718f92d1f"
            },
            {
              "fixed": "fab595205fee206f5c21be6ed8ad2eaf9225f1c7"
            }
          ],
          "repo": "https://github.com/capstone-engine/capstone",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-289w-cm54-fgrm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47143.json"
  },
  "details": "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 \u003cmodrm\u003e \u003cimm8\u003e`. Versions 6.0.0-Alpha8 and 5.0.8 patch the issue.",
  "id": "CVE-2026-47143",
  "modified": "2026-07-25T03:56:23.479431106Z",
  "published": "2026-07-21T20:10:44.476Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47143.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47143"
    },
    {
      "type": "FIX",
      "url": "https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7"
    },
    {
      "type": "FIX",
      "url": "https://github.com/capstone-engine/capstone/pull/2924"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Capstone has a NULL Pointer Dereference with 3DNow! opcodes"
}