FKIE_CVE-2025-54486

Vulnerability from fkie_nvd - Published: 2025-08-25 14:15 - Updated: 2025-11-03 19:16
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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 8824 of biosig.c on the current master branch (35a819fa), when the Tag is 11: else if (tag==11) //0x0B { // Fs if (len>6) fprintf(stderr,"Warning MFER tag11 incorrect length %i>6\n",len); double fval; curPos += ifread(buf,1,len,hdr);
References
talos-cna@cisco.comhttps://talosintelligence.com/vulnerability_reports/TALOS-2025-2234Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234
Impacted products
Vendor Product Version
libbiosig_project libbiosig *
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libbiosig_project:libbiosig:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4893D615-FD95-4393-A5B0-E1BE19F180A6",
              "versionEndExcluding": "3.9.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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 8824 of biosig.c on the current master branch (35a819fa), when the Tag is 11:\r\n\r\n                else if (tag==11)    //0x0B\r\n                {\r\n                    // Fs\r\n                    if (len\u003e6) fprintf(stderr,\"Warning MFER tag11 incorrect length %i\u003e6\\n\",len);\r\n                    double  fval;\r\n                    curPos += ifread(buf,1,len,hdr);"
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de desbordamiento de b\u00fafer en la pila en la funcionalidad de an\u00e1lisis MFER de The Biosig Project libbiosig 3.9.0 y Master Branch (35a819fa). Un archivo MFER especialmente manipulado puede provocar la ejecuci\u00f3n de c\u00f3digo arbitrario. Un atacante puede proporcionar un archivo malicioso para activar esta vulnerabilidad. Esta vulnerabilidad se manifiesta en la l\u00ednea 8824 de biosig.c en la rama maestra actual (35a819fa), cuando la etiqueta es 11: else if (tag==11) //0x0B { // Fs if (len\u0026gt;6) fprintf(stderr,\"Warning MFER tag11 incorrect length %i\u0026gt;6\\n\",len); double fval; curPos += ifread(buf,1,len,hdr);"
    }
  ],
  "id": "CVE-2025-54486",
  "lastModified": "2025-11-03T19:16:10.503",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "talos-cna@cisco.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-25T14:15:34.667",
  "references": [
    {
      "source": "talos-cna@cisco.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
    }
  ],
  "sourceIdentifier": "talos-cna@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "talos-cna@cisco.com",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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