{"id":67648,"date":"2025-08-30T05:00:59","date_gmt":"2025-08-30T05:00:59","guid":{"rendered":""},"modified":"2025-09-16T11:36:44","modified_gmt":"2025-09-16T17:36:44","slug":"cve-2025-52581-integer-overflow-vulnerability-in-the-biosig-project-libbiosig-leading-to-arbitrary-code-execution","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-52581-integer-overflow-vulnerability-in-the-biosig-project-libbiosig-leading-to-arbitrary-code-execution\/","title":{"rendered":"<strong>CVE-2025-52581: Integer Overflow Vulnerability in The Biosig Project libbiosig Leading to Arbitrary Code Execution<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Biosig Project libbiosig, a popular library used for biomedical signal processing and file conversion, has been revealed to have a critical vulnerability that could potentially lead to system compromise or data leakage. The vulnerability, identified as CVE-2025-52581, exists in the GDF parsing functionality of libbiosig 3.9.0 and Master Branch (35a819fa). This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27046-critical-memory-corruption-vulnerability-threatening-system-integrity\/\"  data-wpil-monitor-id=\"75098\">vulnerability is a serious threat to any system<\/a> or application that relies on libbiosig for processing bio-signal data. If exploited, an attacker could execute arbitrary code, <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=\"75729\">potentially compromising the entire system<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-52581<br \/>\nSeverity: Critical, CVSS Score &#8211; 9.8<br \/>\nAttack Vector: File<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30404-integer-overflow-vulnerability-in-executorch-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"75941\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3679599303\" 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=\"83214\">Biosig Project libbiosig<\/a> | 3.9.0 and Master Branch (35a819fa)<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9006-critical-remote-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1\/\"  data-wpil-monitor-id=\"75378\">vulnerability exists due to an integer overflow<\/a> in the GDF parsing functionality of libbiosig. An attacker can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43199-a-high-risk-permissions-issue-enabling-root-privileges-via-malicious-apps\/\"  data-wpil-monitor-id=\"80984\">issue by crafting a malicious<\/a> GDF file that causes the overflow when processed. Once the overflow occurs, it can corrupt the memory, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49526-out-of-bounds-write-vulnerability-in-illustrator-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"75116\">leading to arbitrary code<\/a> execution. This essentially means the attacker can run any code they want on the affected system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53763-improper-access-control-in-azure-databricks-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"79799\">potentially gaining full control<\/a> over it.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3099629306\" 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>The following pseudocode illustrates how an attacker might craft a malicious GDF <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6679-critical-arbitrary-file-upload-vulnerability-in-bit-form-builder-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"75347\">file to exploit the vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\"># Pseudocode to create a malicious GDF file\n# Open a new GDF file\nfile = open(&#039;malicious.gdf&#039;, &#039;wb&#039;)\n# Write a specially crafted header to cause integer overflow\nfile.write(b&#039;\\x00&#039; * 1000000000)\n# Write arbitrary code that will be executed due to the overflow\nfile.write(b&#039;\\x90&#039; * 100 + b&#039;\\xCC&#039;)\nfile.close()<\/code><\/pre>\n<p>This code creates a GDF file with a header that&#8217;s large enough to cause an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49693-a-deep-dive-into-double-free-vulnerability-in-microsoft-brokering-file-system\/\"  data-wpil-monitor-id=\"75316\">integer overflow<\/a> when parsed by the vulnerable libbiosig library. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27577-arbitrary-code-execution-in-openharmony-via-race-condition-vulnerability\/\"  data-wpil-monitor-id=\"76220\">arbitrary code<\/a> (represented by &#8216;x90&#8217; * 100 + &#8216;xCC&#8217;) would then be executed.<br \/>\nRemember, this is a simplified conceptual example. In a real scenario, the <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=\"76784\">arbitrary code<\/a> would be carefully crafted to perform specific actions like creating a backdoor or exfiltrating data.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The best way to mitigate this vulnerability is to apply the vendor patch as soon as it is available. Until then, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help 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=\"76524\">block attempts to exploit this vulnerability<\/a>. It&#8217;s also recommended to validate and sanitize all GDF files before processing them, to prevent potential attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Biosig Project libbiosig, a popular library used for biomedical signal processing and file conversion, has been revealed to have a critical vulnerability that could potentially lead to system compromise or data leakage. The vulnerability, identified as CVE-2025-52581, exists in the GDF parsing functionality of libbiosig 3.9.0 and Master Branch (35a819fa). This vulnerability is [&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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-67648","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/67648","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=67648"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/67648\/revisions"}],"predecessor-version":[{"id":75756,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/67648\/revisions\/75756"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=67648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=67648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=67648"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=67648"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=67648"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=67648"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=67648"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=67648"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=67648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}