{"id":67975,"date":"2025-08-30T10:02:47","date_gmt":"2025-08-30T10:02:47","guid":{"rendered":""},"modified":"2025-09-16T11:36:46","modified_gmt":"2025-09-16T17:36:46","slug":"cve-2025-54462-heap-based-buffer-overflow-vulnerability-in-biosig-project","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54462-heap-based-buffer-overflow-vulnerability-in-biosig-project\/","title":{"rendered":"CVE-2025-54462: Heap-based Buffer Overflow Vulnerability in Biosig Project<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

In this comprehensive review, we delve into CVE-2025-54462, a severe cybersecurity vulnerability that has been identified in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch. This vulnerability, classified as a heap-based buffer overflow, is particularly significant due to its potential to allow an attacker to execute arbitrary code, leading to a potential system compromise or data leakage. As such, this vulnerability presents a substantial threat to any organizations or individuals using the affected versions of the Biosig<\/a> Project.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-54462
\nSeverity: Critical (CVSS score 9.8)
\nAttack Vector: Remote
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Successful exploitation could lead to arbitrary code execution, potential system<\/a> compromise, and data leakage.<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Biosig Project libbiosig<\/a> | 3.9.0 and Master Branch (35a819fa)<\/p>\n

How the Exploit Works<\/strong><\/p>\n

A heap-based buffer overflow vulnerability<\/a> occurs when a program writes more data to a buffer located on the heap than what’s allocated for it. This overflow can corrupt data, crash the program, or lead to the execution of malicious code<\/a>. In the case of CVE-2025-54462, a specially crafted .nex file can trigger this vulnerability, allowing an attacker to execute arbitrary code<\/a>.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Consider the following hypothetical scenario. An attacker crafts a malicious .nex file designed to overflow the buffer<\/a> in the affected Biosig Project software. The attacker then sends this file to the target system<\/a>, either through an email attachment or other delivery methods. Once the target opens this file with the vulnerable software, the overflow is triggered, potentially leading<\/a> to arbitrary code execution, as demonstrated in the pseudo-code below:<\/p>\n

# pseudo-code for the malicious .nex file\nbuffer = 'A' * 1024  # creates a buffer with size greater than what's allocated\nfile = open('malicious.nex', 'w')  # opens a new .nex file\nfile.write(buffer)  # writes the buffer to the .nex file\nfile.close()  # closes the file<\/code><\/pre>\n
Note: This is a simplified representation of how the exploit might work. The actual exploit would likely involve more complex code and interactions with the Biosig Project<\/a> software.
\nThis vulnerability highlights the importance of proper input validation<\/a> and buffer management in software development. As a preventive measure, organizations are encouraged to apply the vendor patch or use WAF\/IDS as a temporary mitigation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In this comprehensive review, we delve into CVE-2025-54462, a severe cybersecurity vulnerability that has been identified in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch. This vulnerability, classified as a heap-based buffer overflow, is particularly significant due to its potential to allow an attacker to execute arbitrary code, leading […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-67975","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t