Biosig libbiosig 3.9.0 ABF Parser integer overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in Biosig libbiosig 3.9.0. Affected is an unknown function of the component ABF Parser. The manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2025-53518. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Biosig libbiosig 3.9.0 and classified as critical. This issue affects an unknown functionality of the component ABF Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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

It is possible to read the advisory at talosintelligence.com. The identification of this vulnerability is CVE-2025-53518 since 07/23/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/03/2025).

The vulnerability scanner Nessus provides a plugin with the ID 260418 (Linux Distros Unpatched Vulnerability : CVE-2025-53518), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (260418) and EUVD (EUVD-2025-25666). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Biosig

Name

• libbiosig

Version

• 3.9.0

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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