Vulnerability · Published Aug 25, 2025 · Assigned by talos
CVE-2025-46411
High 8.1
In plain English
A high-severity stack buffer overflow in libbiosig from The Biosig Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.9%top 40.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | biosig | no fix listed | DEBIAN-CVE-2025-46411 |
| Debian:13 | biosig | no fix listed | DEBIAN-CVE-2025-46411 |
| Debian:14 | biosig | 3.9.5-1 | DEBIAN-CVE-2025-46411 |
| Ubuntu:25.10 | biosig | no fix listed | UBUNTU-CVE-2025-46411 |
| Ubuntu:26.10 | biosig | no fix listed | UBUNTU-CVE-2025-46411 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Biosig Project | libbiosig | 3.9.0Master Branch (35a819fa) |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H