{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-54489",
        "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
        "state": "PUBLISHED",
        "assignerShortName": "talos",
        "dateReserved": "2025-07-23T14:45:55.835Z",
        "datePublished": "2025-08-25T13:53:46.340Z",
        "dateUpdated": "2025-11-03T18:13:30.624Z"
    },
    "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 8970 of biosig.c on the current master branch (35a819fa), when the Tag is 63:\r\n\r\n                else if (tag==63) {\r\n                    uint8_t tag2=255, len2=255;\r\n\r\n                    count = 0;\r\n                    while ((count<len) && !(FlagInfiniteLength && len2==0 && tag2==0)){\r\n                        curPos += ifread(&tag2,1,1,hdr);\r\n                        curPos += ifread(&len2,1,1,hdr);\r\n                        if (VERBOSE_LEVEL==9)\r\n                            fprintf(stdout,\"MFER: tag=%3i chan=%2i len=%-4i tag2=%3i len2=%3i curPos=%i %li count=%4i\\n\",tag,chan,len,tag2,len2,curPos,iftell(hdr),(int)count);\r\n\r\n                        if (FlagInfiniteLength && len2==0 && tag2==0) break;\r\n\r\n                        count  += (2+len2);\r\n                        curPos += ifread(&buf,1,len2,hdr);\r\n\r\nHere, the number of bytes read is not the Data Length decoded from the current frame in the file (`len`) but rather is a new length contained in a single octet read from the same input file (`len2`). Despite this, a stack-based buffer overflow condition can still occur, as the destination buffer is still `buf`, which has a size of only 128 bytes, while `len2` can be as large as 255."
                }
            ],
            "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": "2025-08-25T13:53:46.340Z"
            },
            "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 &gt;_&gt; of Cisco Talos."
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-08-25T19:03:04.171729Z",
                                "id": "CVE-2025-54489",
                                "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": "2025-08-25T19:03:12.538Z"
                }
            },
            {
                "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": "2025-11-03T18:13:30.624Z"
                }
            }
        ]
    }
}