VulnerabilityModified

CVE-2025-53853

A heap-based buffer overflow vulnerability exists in the ISHNE parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa).

CRITICAL 9.8EPSS 0.92%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A heap-based buffer overflow vulnerability exists in the ISHNE parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted ISHNE ECG annotations file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.92% probability · 58th percentile
CISA KEV: Not listed
Weakness: CWE-122
Affected: libbiosig project/libbiosig
Source: talos-cna@cisco.com

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2232Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2232

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.