{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-13T18:40:52.157","vulnerabilities":[{"cve":{"id":"CVE-2025-54487","sourceIdentifier":"talos-cna@cisco.com","published":"2025-08-25T14:15:34.860","lastModified":"2025-11-03T19:16:10.617","vulnStatus":"Modified","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 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>6) fprintf(stderr,\"Warning MFER tag12 incorrect length %i>6\\n\",len);\r\n                    val32   = 0;\r\n                    int8_t  v8;\r\n                    curPos += ifread(&UnitCode,1,1,hdr);\r\n                    curPos += ifread(&v8,1,1,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."},{"lang":"es","value":"Existe una vulnerabilidad de desbordamiento de búfer basada en pila en la funcionalidad de análisis MFER de The Biosig Project libbiosig 3.9.0 y Master Branch (35a819fa). Un archivo MFER especialmente manipulado puede provocar la ejecución de código arbitrario. Un atacante puede proporcionar un archivo malicioso para activar esta vulnerabilidad. Esta vulnerabilidad se manifiesta en la línea 8842 de biosig.c en la rama maestra actual (35a819fa), cuando la etiqueta es 12: else if (tag==12) //0x0C { // resolución de muestreo if (len>6) fprintf(stderr,\"Warning MFER tag12 incorrect length %i>6\\n\",len); val32 = 0; int8_t v8; curPos += ifread(&UnitCode,1,1,hdr); curPos += ifread(&v8,1,1,hdr); curPos += ifread(buf,1,len-2,hdr); Además de los valores de `len` mayores que 130 que desencadenan un desbordamiento de búfer, un valor de `len` menor que 2 también desencadenará un desbordamiento de búfer debido a un desbordamiento de entero al calcular `len-2` en esta ruta de código."}],"metrics":{"cvssMetricV31":[{"source":"talos-cna@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}]},"weaknesses":[{"source":"talos-cna@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-121"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:libbiosig_project:libbiosig:*:*:*:*:*:*:*:*","versionEndExcluding":"3.9.1","matchCriteriaId":"4893D615-FD95-4393-A5B0-E1BE19F180A6"}]}]}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234","source":"talos-cna@cisco.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}