CVE-2025-54492
CVE-2025-54492
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.8EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
25 Aug 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 9141 of biosig.c on the current master branch (35a819fa), when the Tag is 67:
else if (tag==67) //0x43: Sample skew
{
int skew=0; // [1]
curPos += ifread(&skew, 1, len,hdr);
In this case, the address of the newly-defined integer `skew` \[1\] is overflowed instead of `buf`. This means a stack overflow can occur using much smaller values of `len` in this code path.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
The Biosig Project · libbiosigWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →