CVE-2025-54492
BaseFortify
Publication date: 2025-08-25
Last updated on: 2025-11-03
Assigner: Talos
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| libbiosig_project | libbiosig | to 3.9.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a stack-based buffer overflow in the MFER parsing functionality of The Biosig Project libbiosig version 3.9.0 and its master branch. It occurs when processing a specially crafted MFER file with a specific tag (67). The overflow happens because the code incorrectly overflows the address of a newly defined integer variable 'skew' on the stack instead of the intended buffer, allowing an attacker to cause a stack overflow with smaller input sizes. This can lead to arbitrary code execution when a malicious file is provided.
How can this vulnerability impact me? :
This vulnerability can allow an attacker to execute arbitrary code on the affected system by providing a specially crafted MFER file. This can lead to full compromise of the system, including unauthorized access, data manipulation, or denial of service. The high CVSS score (9.8) indicates it is critical and can be exploited remotely without privileges or user interaction.