CVE-2025-54481: fallo crítico en The Biosig Project libbiosig
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.8epss 0.7%
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 8744 of biosig.c on the current master branch (35a819fa), when the Tag is 3:
else if (tag==3) {
// character code
char v[17]; // [1]
if (len>16) fprintf(stderr,"Warning MFER tag2 incorrect length %i>16\n",len);
curPos += ifread(&v,1,len,hdr);
v[len] = 0;
In this case, the overflowed buffer is the newly-declared `v` \[1\] instead of `buf`. Since `v` is only 17 bytes large, much smaller values of `len` (even those encoded using a single octet) can trigger an overflow in this code path.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
The Biosig Project · libbiosigCVEs relacionadas — The Biosig Project libbiosig
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