CVE-2025-54484 (GCVE-0-2025-54484)
Vulnerability from cvelistv5 – Published: 2025-08-25 13:53 – Updated: 2025-11-03 18:13
VLAI
EPSS
VEX
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 8779 of biosig.c on the current master branch (35a819fa), when the Tag is 6:
else if (tag==6) // 0x06 "number of sequences"
{
// NRec
if (len>4) fprintf(stderr,"Warning MFER tag6 incorrect length %i>4\n",len);
curPos += ifread(buf,1,len,hdr);
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-25 19:08 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
talos
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Biosig Project | libbiosig |
Affected:
3.9.0
Affected: Master Branch (35a819fa) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-54484",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-25T19:08:17.891377Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-08-25T19:08:24.199Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T18:13:25.476Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "libbiosig",
"vendor": "The Biosig Project",
"versions": [
{
"status": "affected",
"version": "3.9.0"
},
{
"status": "affected",
"version": "Master Branch (35a819fa)"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Discovered by Mark Bereza and Lilith \u0026gt;_\u0026gt; of Cisco Talos."
}
],
"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 8779 of biosig.c on the current master branch (35a819fa), when the Tag is 6:\r\n\r\n\t\t\t\telse if (tag==6) \t// 0x06 \"number of sequences\"\r\n\t\t\t\t{\r\n\t\t\t\t\t// NRec\r\n\t\t\t\t\tif (len\u003e4) fprintf(stderr,\"Warning MFER tag6 incorrect length %i\u003e4\\n\",len);\r\n\t\t\t\t\tcurPos += ifread(buf,1,len,hdr);"
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121: Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-08-25T13:53:45.716Z",
"orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
"shortName": "talos"
},
"references": [
{
"name": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
"assignerShortName": "talos",
"cveId": "CVE-2025-54484",
"datePublished": "2025-08-25T13:53:45.716Z",
"dateReserved": "2025-07-23T14:45:55.835Z",
"dateUpdated": "2025-11-03T18:13:25.476Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-54484",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-25T19:08:17.891377Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-08-25T19:08:21.244Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "libbiosig",
"vendor": "The Biosig Project",
"versions": [
{
"status": "affected",
"version": "3.9.0"
},
{
"status": "affected",
"version": "Master Branch (35a819fa)"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Discovered by Mark Bereza and Lilith \u0026gt;_\u0026gt; of Cisco Talos."
}
],
"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 8779 of biosig.c on the current master branch (35a819fa), when the Tag is 6:\r\n\r\n\t\t\t\telse if (tag==6) \t// 0x06 \"number of sequences\"\r\n\t\t\t\t{\r\n\t\t\t\t\t// NRec\r\n\t\t\t\t\tif (len\u003e4) fprintf(stderr,\"Warning MFER tag6 incorrect length %i\u003e4\\n\",len);\r\n\t\t\t\t\tcurPos += ifread(buf,1,len,hdr);"
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121: Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-08-25T13:53:45.716Z",
"orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
"shortName": "talos"
},
"references": [
{
"name": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
"assignerShortName": "talos",
"cveId": "CVE-2025-54484",
"datePublished": "2025-08-25T13:53:45.716Z",
"dateReserved": "2025-07-23T14:45:55.835Z",
"dateUpdated": "2025-08-25T19:08:24.199Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- 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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.