{"id":67954,"date":"2025-08-30T09:02:23","date_gmt":"2025-08-30T09:02:23","guid":{"rendered":""},"modified":"2025-09-28T06:30:08","modified_gmt":"2025-09-28T12:30:08","slug":"cve-2025-53853-buffer-overflow-vulnerability-in-biosig-project-libbiosig","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53853-buffer-overflow-vulnerability-in-biosig-project-libbiosig\/","title":{"rendered":"<strong>CVE-2025-53853: Buffer Overflow Vulnerability in Biosig Project libbiosig<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Biosig Project libbiosig, a popular biosignal processing library, has been discovered to contain a severe heap-based buffer overflow vulnerability. This vulnerability, allocated the identifier CVE-2025-53853, affects version 3.9.0 and the Master Branch (35a819fa) of libbiosig. The exploitation of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47982-improper-input-validation-vulnerability-in-windows-storage-vsp-driver-leading-to-privilege-escalation\/\"  data-wpil-monitor-id=\"75557\">vulnerability could lead<\/a> to arbitrary code execution, potentially compromising the entire system or leading to data leakage. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8011-high-severity-heap-corruption-vulnerability-in-google-chrome-v8\/\"  data-wpil-monitor-id=\"75625\">vulnerability is of significant importance due to its high severity<\/a> and the widespread use of the Biosig Project&#8217;s libbiosig in the healthcare industry.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-53853<br \/>\nSeverity: Critical (CVSS 9.8)<br \/>\nAttack Vector: File<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40741-stack-based-overflow-vulnerability-in-solid-edge-se2025-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"75740\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-65820427\" 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><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=\"83218\">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-2025-49661-untrusted-pointer-dereference-vulnerability-in-windows-ancillary-function-driver-for-winsock\/\"  data-wpil-monitor-id=\"80379\">vulnerability resides in the ISHNE parsing functionality<\/a> of libbiosig. An attacker can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54689-high-risk-php-remote-file-inclusion-vulnerability-in-urna\/\"  data-wpil-monitor-id=\"76615\">vulnerability by crafting a malicious ISHNE ECG annotations file<\/a>. When this file is processed by the vulnerable software, it triggers a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8822-stack-based-buffer-overflow-vulnerability-in-linksys-devices\/\"  data-wpil-monitor-id=\"75508\">buffer overflow<\/a>. This overflow occurs because the software fails to properly <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24325-improper-input-validation-in-intel-r-800-series-ethernet-driver-allows-potential-escalation-of-privilege\/\"  data-wpil-monitor-id=\"80481\">validate the size of the input<\/a> data before copying it to a fixed-size buffer. This can lead to overwriting of adjacent memory spaces, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3128-critical-vulnerability-in-mitsubishi-electric-smartrtu-allowing-remote-code-execution\/\"  data-wpil-monitor-id=\"76213\">allowing the attacker to execute arbitrary code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4230822349\" 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>Given that the vulnerability occurs during the parsing of an ISHNE ECG annotations file, the exploit would likely involve the creation of such a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47696-high-risk-php-remote-file-inclusion-vulnerability-in-solwin-blog-designer-pro\/\"  data-wpil-monitor-id=\"86072\">file with specially designed<\/a> data to trigger the overflow. A conceptual example might look like this:<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;stdio.h&gt;\n#include &lt;string.h&gt;\nint main(void) {\nchar buffer[512];\nFILE *fp;\nmemset(buffer, &#039;A&#039;, sizeof(buffer)-1); \/\/ Fill the buffer with &#039;A&#039;s\nbuffer[sizeof(buffer)-1] = &#039;\\0&#039;; \/\/ Null terminate the string\nfp = fopen(&quot;malicious.ishne&quot;, &quot;w&quot;);\nfwrite(buffer, sizeof(char), sizeof(buffer), fp); \/\/ Write the buffer to the file\nfclose(fp);\nreturn 0;\n}<\/code><\/pre>\n<p>This conceptual example creates a malicious ISHNE ECG annotations file that contains a string of &#8216;A&#8217;s longer than the buffer size. When the file is processed by the vulnerable software, it would trigger the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8826-critical-buffer-overflow-vulnerability-in-linksys-wireless-range-extenders\/\"  data-wpil-monitor-id=\"75512\">buffer overflow<\/a>.<\/p>\n<p><strong>Recommended Mitigation<\/strong><\/p>\n<p>Users are advised to apply the vendor patch immediately if available. If the patch is not available or if immediate patching is not feasible, users should consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure to detect and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76526\">block attempts to exploit this vulnerability<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Biosig Project libbiosig, a popular biosignal processing library, has been discovered to contain a severe heap-based buffer overflow vulnerability. This vulnerability, allocated the identifier CVE-2025-53853, affects version 3.9.0 and the Master Branch (35a819fa) of libbiosig. The exploitation of this vulnerability could lead to arbitrary code execution, potentially compromising the entire system or leading [&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-67954","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\/67954","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=67954"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/67954\/revisions"}],"predecessor-version":[{"id":78865,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/67954\/revisions\/78865"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=67954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=67954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=67954"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=67954"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=67954"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=67954"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=67954"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=67954"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=67954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}