Vulnerability · Published Mar 3, 2026 · Assigned by talos
CVE-2025-64736
Medium 6.1
In plain English
A medium-severity out-of-bounds read 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 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 87.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An out-of-bounds read vulnerability exists in the ABF parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (5462afb0). A specially crafted .abf file can lead to an information leak. 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-2025-64736 |
| Debian:13 | biosig | no fix listed | DEBIAN-CVE-2025-64736 |
| Debian:14 | biosig | 3.9.5-1 | DEBIAN-CVE-2025-64736 |
| Ubuntu:25.10 | biosig | no fix listed | UBUNTU-CVE-2025-64736 |
| Ubuntu:26.10 | biosig | no fix listed | UBUNTU-CVE-2025-64736 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Biosig Project | libbiosig | 3.9.2Master Branch (5462afb0) |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L