Biosig libbiosig 3.9.0 MFER Parser heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Biosig libbiosig 3.9.0 and classified as critical. Affected by this issue is some unknown functionality of the component MFER Parser. This manipulation causes heap-based overflow. The identification of this vulnerability is CVE-2025-53511. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Biosig libbiosig 3.9.0. It has been declared as critical. Affected by this vulnerability is an unknown part of the component MFER Parser. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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

The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2025-53511 since 07/23/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price 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 260416 (Linux Distros Unpatched Vulnerability : CVE-2025-53511), 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 vulnerability database at Tenable (260416). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (talos): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 260416
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-53511

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/23/2025 CVE reserved
08/25/2025 +33 days Advisory disclosed
08/25/2025 +0 days VulDB entry created
09/03/2025 +8 days VulDB entry last update

Sourcesinfo

Advisory: TALOS-2025-2237
Status: Not defined

CVE: CVE-2025-53511 (🔒)
GCVE (CVE): GCVE-0-2025-53511
GCVE (VulDB): GCVE-100-321289

Entryinfo

Created: 08/25/2025 16:18
Updated: 09/03/2025 00:19
Changes: 08/25/2025 16:18 (63), 08/27/2025 11:07 (1), 09/03/2025 00:19 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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