🛡️ CVE-2025-64736 on Debian — biosig

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2025-64736 as tracked by Debian, for the package biosig. The fix is available in version 3.9.5-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability high.

Weakness class

DEBIAN-CVE-2025-64736 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

DEBIAN-CVE-2025-64736 is recorded against 1 package.

  • biosig (fixed in 3.9.5-1)

Timeline and source

Published on 3 March 2026 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2025-64736 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-03-03
Updated 2026-08-12
Modified 2026-08-04
Fix URL N/A

Affected Packages

Software From version Fixed in
biosig — 3.9.5-1

Vulnerability Monitoring

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