CVE-2025-54487

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-54487", "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "state": "PUBLISHED", "assignerShortName": "talos", "dateReserved": "2025-07-23T14:45:55.835Z", "datePublished": "2025-08-25T13:53:46.068Z", "dateUpdated": "2025-11-03T18:13:28.729Z"}, "containers": {"cna": {"affected": [{"vendor": "The Biosig Project", "product": "libbiosig", "versions": [{"version": "3.9.0", "status": "affected"}, {"version": "Master Branch (35a819fa)", "status": "affected"}]}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-121: Stack-based Buffer Overflow", "type": "CWE", "cweId": "CWE-121"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL"}}], "providerMetadata": {"orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "shortName": "talos", "dateUpdated": "2025-08-25T13:53:46.068Z"}, "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234", "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234"}], "credits": [{"lang": "en", "value": "Discovered by Mark Bereza and Lilith >_> of Cisco Talos."}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-08-25T19:04:54.578271Z", "id": "CVE-2025-54487", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-25T19:05:00.587Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T18:13:28.729Z"}}]}}

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{"affected": [{"affectedData": [{"product": "libbiosig", "vendor": "The Biosig Project", "versions": [{"status": "affected", "version": "3.9.0"}, {"status": "affected", "version": "Master Branch (35a819fa)"}]}], "source": "talos-cna@cisco.com"}], "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 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 b\u00fafer basada en 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 8842 de biosig.c en la rama maestra actual (35a819fa), cuando la etiqueta es 12: else if (tag==12) //0x0C { // resoluci\u00f3n 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); Adem\u00e1s de los valores de `len` mayores que 130 que desencadenan un desbordamiento de b\u00fafer, un valor de `len` menor que 2 tambi\u00e9n desencadenar\u00e1 un desbordamiento de b\u00fafer debido a un desbordamiento de entero al calcular `len-2` en esta ruta de c\u00f3digo."}], "id": "CVE-2025-54487", "lastModified": "2026-06-17T09:40:11.600", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-54487", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-08-25T19:04:54.578271Z", "version": "2.0.3"}}]}, "published": "2025-08-25T14:15:34.860", "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"}]}

{}

{"created": "2025-08-25T21:53:11.390016+00:00", "updated": "2025-08-25T21:53:11.390068+00:00", "vendors": ["the_biosig_project", "the_biosig_project$PRODUCT$libbiosig"]}