Stack-Based Buffer Overflow in Libbiosig by Biosig Project

CVE-2025-54487

What is CVE-2025-54487?

A buffer overflow vulnerability is present in the MFER file parsing functionality of the libbiosig library. Specifically, the issue arises when processing MFER files with a Tag value of 12, where improper length checks lead to unsafe memory operations. Attackers can exploit this condition by providing specially crafted MFER files, resulting in potential arbitrary code execution. The vulnerability is triggered by values of 'len' exceeding 130 or being less than 2, leading to significant security risks. Developers and users of the affected versions are urged to apply necessary patches to mitigate the risk.

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