{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.9.1"
              }
            ]
          }
        ]
      }
    }
  ],
  "details": "A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability manifests on line 8842 of biosig.c on the current master branch (35a819fa), when the Tag is 12:\r\n\r\n                else if (tag==12)    //0x0C\r\n                {\r\n                    // sampling resolution\r\n                    if (len\u003e6) fprintf(stderr,\"Warning MFER tag12 incorrect length %i\u003e6\\n\",len);\r\n                    val32   = 0;\r\n                    int8_t  v8;\r\n                    curPos += ifread(\u0026UnitCode,1,1,hdr);\r\n                    curPos += ifread(\u0026v8,1,1,hdr);\r\n                    curPos += ifread(buf,1,len-2,hdr);\r\n\r\nIn addition to values of `len` greater than 130 triggering a buffer overflow, a value of `len` smaller than 2 will also trigger a buffer overflow due to an integer underflow when computing `len-2` in this code path.",
  "id": "CVE-2025-54487",
  "modified": "2026-03-10T21:53:14.157837233Z",
  "published": "2025-08-25T14:15:34.860Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
    },
    {
      "type": "EVIDENCE",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}