CVE-2025-54480 — Stack-based Buffer Overflow in Project Libbiosig
Severity
9.8CRITICALNVD
EPSS
0.3%
top 46.61%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 25
Latest updateAug 27
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 8719 of biosig.c on the current master branch (35a819fa), when the Tag is 0:
if (tag==0) {
if (len!=1) fprintf(stderr,"Warning MFER tag0 incorrect length %i!=1\n",len);
c…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
Affected Packages2 packages
🔴Vulnerability Details
3GHSA▶
GHSA-58p7-5qf7-xprq: A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3↗2025-08-25
CVEList▶
CVE-2025-54480: A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3↗2025-08-25
OSV▶
CVE-2025-54480: A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3↗2025-08-25
📋Vendor Advisories
1Debian▶
CVE-2025-54480: biosig - A stack-based buffer overflow vulnerability exists in the MFER parsing functiona...↗2025