CVE-2024-23809

A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of The...

9.8 CriticalFix available

A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .vdhr file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.68%Up 1.6 points since Feb 21, 2024

What each source reports

CVE List Score used 9.8

Record: CVE-2024-23809
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-415
Updated: 2026-11-02

EUVDEUVD-2024-21262 9.8

Record: EUVD-2024-21262
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-v8rx-gg8c-mc3c 9.8

A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of The...

Record: GHSA-v8rx-gg8c-mc3c
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-415
Updated: 2026-11-02

NVD 9.8

Record: CVE-2024-23809
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-415
Updated: 2026-11-02

OSV 9.8

Record: CVE-2024-23809
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2024-23809 9.8

Record: DEBIAN-CVE-2024-23809
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2024-23809 9.8

Record: UBUNTU-CVE-2024-23809
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`biosig` Debian:12	All versions, plus listed versions 2.5.0-12.5.2-12.5.2-22.6.0-12.6.1-13.9.0-13.9.5-1	None known
`biosig` Debian:13	before 2.6.0-1	2.6.0-1
`biosig` Debian:14	before 2.6.0-1	2.6.0-1
`biosig` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 2.1.2-42.1.2-4build12.1.2-4build22.3.3-12.3.3-1build12.3.3-1build22.3.3-1ubuntu0.1~esm1	None known
`biosig` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 2.5.0-1build22.5.2-12.5.2-1build12.5.2-22.6.0-12.6.0-1build12.6.0-1ubuntu12.6.0-1ubuntu1+esm1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-23809 is a critical vulnerability (CVSS 9.8) in Libbiosig Project Libbiosig, published February 20, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.68%, the 76th percentile. Fixed in biosig 2.6.0-1.