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 8824 of biosig.c on the current master branch (35a819fa), when the Tag is 11:
                else if (tag==11)    //0x0B
                {
                    // Fs
                    if (len>6) fprintf(stderr,"Warning MFER tag11 incorrect length %i>6\n",len);
                    double  fval;
                    curPos += ifread(buf,1,len,hdr);
                
            Metrics
Affected Vendors & Products
References
        History
                    Tue, 02 Sep 2025 16:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Libbiosig Project Libbiosig Project libbiosig | |
| CPEs | cpe:2.3:a:libbiosig_project:libbiosig:*:*:*:*:*:*:*:* | |
| Vendors & Products | Libbiosig Project Libbiosig Project libbiosig | 
Mon, 25 Aug 2025 22:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | The Biosig Project The Biosig Project libbiosig | |
| Vendors & Products | The Biosig Project The Biosig Project libbiosig | 
Mon, 25 Aug 2025 21:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
Mon, 25 Aug 2025 14:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | 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 8824 of biosig.c on the current master branch (35a819fa), when the Tag is 11: else if (tag==11) //0x0B { // Fs if (len>6) fprintf(stderr,"Warning MFER tag11 incorrect length %i>6\n",len); double fval; curPos += ifread(buf,1,len,hdr); | |
| Weaknesses | CWE-121 | |
| References |  | |
| Metrics | cvssV3_1 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: talos
Published: 2025-08-25T13:53:45.946Z
Updated: 2025-08-25T19:06:30.227Z
Reserved: 2025-07-23T14:45:55.835Z
Link: CVE-2025-54486
 Vulnrichment
                        Vulnrichment
                    Updated: 2025-08-25T19:06:27.466Z
 NVD
                        NVD
                    Status : Analyzed
Published: 2025-08-25T14:15:34.667
Modified: 2025-09-02T16:34:21.753
Link: CVE-2025-54486
 Redhat
                        Redhat
                    No data.