CVE-2025-54494

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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 9205 of biosig.c on the current master branch (35a819fa), when the Tag is 133:\r\n\r\n else if (tag==133) //0x85\r\n {\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 9205 de biosig.c en la rama maestra actual (35a819fa), cuando la etiqueta es 133: else if (tag==133) //0x85 { curPos += ifread(buf,1,len,hdr);"}], "id": "CVE-2025-54494", "lastModified": "2026-06-17T09:40:12.393", "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-2025-54494", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-08-25T18:21:09.065723Z", "version": "2.0.3"}}]}, "published": "2025-08-25T14:15:36.230", "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": "2025-08-25T21:53:04.370282+00:00", "updated": "2025-08-25T21:53:04.370336+00:00", "vendors": ["the_biosig_project", "the_biosig_project$PRODUCT$libbiosig"]}