CVE-2025-54493
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-25

Last updated on: 2025-11-03

Assigner: Talos

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 9184 of biosig.c on the current master branch (35a819fa), when the Tag is 131: else if (tag==131) //0x83 { // Patient Age if (len!=7) fprintf(stderr,"Warning MFER tag131 incorrect length %i!=7\n",len); curPos += ifread(buf,1,len,hdr);
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Meta Information
Published
2025-08-25
Last Modified
2025-11-03
Generated
2026-05-07
AI Q&A
2025-08-25
EPSS Evaluated
2026-05-05
NVD
CVE-2025-54493
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
libbiosig_project libbiosig to 3.9.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a stack-based buffer overflow in the MFER parsing functionality of The Biosig Project libbiosig version 3.9.0 and its master branch. It occurs when processing a specially crafted MFER file, specifically when the Tag value is 131 (0x83). The issue arises because the code does not properly handle the length of the data, potentially allowing an attacker to execute arbitrary code by providing a malicious MFER file.


How can this vulnerability impact me? :

This vulnerability can allow an attacker to execute arbitrary code on the affected system without any privileges or user interaction. This can lead to full compromise of the system, including unauthorized access, data theft, or disruption of services.


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