{"id":34253,"date":"2025-05-02T18:46:31","date_gmt":"2025-05-02T18:46:31","guid":{"rendered":""},"modified":"2025-05-30T05:23:05","modified_gmt":"2025-05-30T11:23:05","slug":"cve-2025-3989-critical-buffer-overflow-vulnerability-in-totolink-n150rt","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3989-critical-buffer-overflow-vulnerability-in-totolink-n150rt\/","title":{"rendered":"<strong>CVE-2025-3989: Critical Buffer Overflow Vulnerability in TOTOLINK N150RT<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-3989 vulnerability is a critical security flaw identified in the TOTOLINK N150RT 3.4.0-B20190525. This vulnerability affects an unspecified function related to the \/boafrm\/formStaticDHCP file. The exploitation of this vulnerability could lead to serious <a href=\"https:\/\/www.ameeba.com\/blog\/unmasking-the-moroccan-data-breach-implications-for-u-s-cybersecurity\/\"  data-wpil-monitor-id=\"38773\">implications such as system compromise or data<\/a> leakage. It is particularly concerning because the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28034-remote-command-execution-vulnerability-in-totolink-wireless-routers\/\"  data-wpil-monitor-id=\"39471\">vulnerability can be manipulated remotely<\/a>, widening the potential attack surface. Given the public disclosure of the exploit, immediate attention and mitigation are necessary to prevent the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32849-vulnerability-in-telecontrol-server-basic-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"39175\">potential exploitation of the vulnerability<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-3989<br \/>\nSeverity: Critical (8.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Buffer overflow <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32843-sql-injection-vulnerability-in-telecontrol-server-basic-leading-to-authorization-bypass-and-data-manipulation\/\"  data-wpil-monitor-id=\"39067\">leading to potential system compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2109066834\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3991-critical-buffer-overflow-vulnerability-in-totolink-n150rt-3-4-0-b20190525\/\"  data-wpil-monitor-id=\"41076\">TOTOLINK N150RT<\/a> | 3.4.0-B20190525<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-3989 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28024-buffer-overflow-vulnerability-in-totolink-a810r-v4-1-2cu-5182-b20201026\/\"  data-wpil-monitor-id=\"39551\">vulnerability is a buffer overflow<\/a> issue that is triggered when manipulating the &#8216;Hostname&#8217; argument in the \/boafrm\/formStaticDHCP file. An attacker can craft a malicious request with an overlong Hostname value, causing the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3619-critical-heap-buffer-overflow-vulnerability-in-google-chrome-codecs\/\"  data-wpil-monitor-id=\"40058\">buffer to overflow<\/a>. This overflow can lead to unintended code execution, which an <a href=\"https:\/\/www.ameeba.com\/blog\/ahold-delhaize-cyber-attack-unpacking-the-data-breach-and-its-implications\/\"  data-wpil-monitor-id=\"39174\">attacker can exploit to compromise the system or leak data<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1805167173\" 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>Below is a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47154-exploitation-of-use-after-free-vulnerability-in-libjs-in-ladybird\/\"  data-wpil-monitor-id=\"50919\">vulnerability could be exploited<\/a>. The attacker sends a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4827-critical-buffer-overflow-vulnerability-in-totolink-http-post-request-handler\/\"  data-wpil-monitor-id=\"50918\">POST request<\/a> with an excessively long &#8216;Hostname&#8217; value to the target router.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/boafrm\/formStaticDHCP HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nHostname=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n<p>In the above request, &#8216;A&#8217; is used to represent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-32401-buffer-overflow-vulnerability-in-macos-leads-to-potential-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"51631\">arbitrary data that fills the buffer<\/a> beyond its capacity, triggering the overflow.<\/p>\n<p><strong>Mitigation Measures<\/strong><\/p>\n<p>To mitigate this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32825-critical-sql-injection-vulnerability-in-telecontrol-server-basic\/\"  data-wpil-monitor-id=\"38778\">critical vulnerability<\/a>, users are advised to apply the vendor-supplied patch as soon as it becomes available. In the meantime, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and prevent potential exploitation. Regular monitoring of network traffic and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24351-remote-logging-vulnerability-in-ctrlx-os-can-lead-to-root-level-system-compromise\/\"  data-wpil-monitor-id=\"42182\">system logs<\/a> can also aid in early detection of any suspicious activities.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-3989 vulnerability is a critical security flaw identified in the TOTOLINK N150RT 3.4.0-B20190525. This vulnerability affects an unspecified function related to the \/boafrm\/formStaticDHCP file. The exploitation of this vulnerability could lead to serious implications such as system compromise or data leakage. It is particularly concerning because the vulnerability can be manipulated remotely, widening [&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],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-34253","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34253","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=34253"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34253\/revisions"}],"predecessor-version":[{"id":46195,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34253\/revisions\/46195"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=34253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=34253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=34253"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=34253"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=34253"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=34253"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=34253"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=34253"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=34253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}