Out-of-bounds Write Affecting biosig package, versions <3.9.5-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.55% (45th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-BIOSIG-14397979
  • published12 Dec 2025
  • disclosed11 Dec 2025

Introduced: 11 Dec 2025

CVE-2025-66046  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:unstable biosig to version 3.9.5-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream biosig package and not the biosig package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 67

CVSS Base Scores

version 3.1