Vulnerability · Published Aug 25, 2025 · Assigned by talos
CVE-2025-52581
Critical 9.8
In plain English
A critical-severity integer 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 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 47.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An integer overflow vulnerability exists in the GDF parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted GDF 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-2025-52581 |
| Debian:13 | biosig | no fix listed | DEBIAN-CVE-2025-52581 |
| Debian:14 | biosig | 3.9.5-1 | DEBIAN-CVE-2025-52581 |
| Ubuntu:25.10 | biosig | no fix listed | UBUNTU-CVE-2025-52581 |
| Ubuntu:26.10 | biosig | no fix listed | UBUNTU-CVE-2025-52581 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Biosig Project | libbiosig | 3.9.0Master Branch (35a819fa) |
Weakness: CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H