{"id":68604,"date":"2025-08-30T23:07:18","date_gmt":"2025-08-30T23:07:18","guid":{"rendered":""},"modified":"2025-09-16T11:36:43","modified_gmt":"2025-09-16T17:36:43","slug":"cve-2025-54492-critical-buffer-overflow-vulnerability-in-the-biosig-project-libbiosig","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54492-critical-buffer-overflow-vulnerability-in-the-biosig-project-libbiosig\/","title":{"rendered":"<strong>CVE-2025-54492: Critical Buffer Overflow Vulnerability in The Biosig Project libbiosig<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-54492 is a critical vulnerability that affects The Biosig Project libbiosig version 3.9.0 and the Master Branch (35a819fa). This vulnerability is a buffer overflow that potentially allows an attacker to execute arbitrary code, possibly leading to system compromise or data leakage. This security flaw matters because it could enable a malicious actor to disrupt the operations of affected systems or steal <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30105-sensitive-information-leak-in-dell-xtremio\/\"  data-wpil-monitor-id=\"80907\">sensitive information<\/a>, which could lead to significant business and reputation damage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-54492<br \/>\nSeverity: Critical (9.8)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42950-sap-landscape-transformation-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"77572\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-40544511\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54480-critical-stack-based-buffer-overflow-vulnerability-in-the-biosig-project-libbiosig-3-9-0\/\"  data-wpil-monitor-id=\"83211\">Biosig Project libbiosig<\/a> | 3.9.0, Master Branch (35a819fa)<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55444-severe-sql-injection-vulnerability-in-online-artwork-and-fine-arts-mca-project-1-0\/\"  data-wpil-monitor-id=\"76711\">vulnerability exists in the MFER parsing functionality of The Biosig<\/a> Project libbiosig. It occurs due to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9007-critical-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1\/\"  data-wpil-monitor-id=\"76532\">buffer overflow<\/a> on line 9141 of biosig.c when the Tag is 67. In this case, the address of the newly-defined <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48816-integer-overflow-vulnerability-in-hid-class-driver-leading-to-local-privilege-escalation\/\"  data-wpil-monitor-id=\"76724\">integer `skew` is overflowed<\/a> instead of `buf`. This means that a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23311-stack-overflow-vulnerability-in-nvidia-triton-inference-server-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78799\">stack overflow<\/a> can occur with much smaller values of `len` in this code path. An attacker can exploit this vulnerability by providing a specially crafted MFER file that would cause the buffer overflow, leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27577-arbitrary-code-execution-in-openharmony-via-race-condition-vulnerability\/\"  data-wpil-monitor-id=\"76233\">arbitrary code execution<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3033702499\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>This conceptual example demonstrates how a malicious MFER <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54689-high-risk-php-remote-file-inclusion-vulnerability-in-urna\/\"  data-wpil-monitor-id=\"76606\">file might be used to exploit the vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">$ nc target.example.com 1234 &lt; malicious.mfer<\/code><\/pre>\n<p>In this example, netcat (`nc`) is used to send a malicious MFER <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55345-arbitrary-file-overwrite-and-remote-code-execution-vulnerability-in-codex-cli\/\"  data-wpil-monitor-id=\"76802\">file to the vulnerable<\/a> system over a network connection. The malicious file contains data crafted in such a way that it triggers the buffer overflow and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3128-critical-vulnerability-in-mitsubishi-electric-smartrtu-allowing-remote-code-execution\/\"  data-wpil-monitor-id=\"76209\">allows arbitrary code<\/a> execution.<\/p>\n<p><strong>Mitigation and Remediation<\/strong><\/p>\n<p>The best way to mitigate this vulnerability is by applying the vendor patch. In scenarios where immediate patching is not feasible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation by detecting and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76320\">blocking attempts to exploit this vulnerability<\/a>.<br \/>\nEnsure to continuously monitor the security advisories from The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53557-critical-heap-based-buffer-overflow-vulnerability-in-the-biosig-project-libbiosig\/\"  data-wpil-monitor-id=\"83226\">Biosig Project<\/a> and perform regular security updates. It&#8217;s also recommended to follow the principle of least <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49759-sql-injection-vulnerability-in-sql-server-potentially-enabling-privilege-escalation-and-data-leakage\/\"  data-wpil-monitor-id=\"79191\">privilege and segment networks to limit the potential<\/a> impact of a breach.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-54492 is a critical vulnerability that affects The Biosig Project libbiosig version 3.9.0 and the Master Branch (35a819fa). This vulnerability is a buffer overflow that potentially allows an attacker to execute arbitrary code, possibly leading to system compromise or data leakage. This security flaw matters because it could enable a malicious actor to disrupt [&hellip;]<\/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,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-68604","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/68604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=68604"}],"version-history":[{"count":14,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/68604\/revisions"}],"predecessor-version":[{"id":75768,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/68604\/revisions\/75768"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=68604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=68604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=68604"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=68604"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=68604"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=68604"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=68604"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=68604"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=68604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}