{"id":34257,"date":"2025-05-02T22:48:14","date_gmt":"2025-05-02T22:48:14","guid":{"rendered":""},"modified":"2025-05-11T06:20:27","modified_gmt":"2025-05-11T06:20:27","slug":"cve-2025-3993-critical-buffer-overflow-vulnerability-in-totolink-n150rt","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3993-critical-buffer-overflow-vulnerability-in-totolink-n150rt\/","title":{"rendered":"<strong>CVE-2025-3993: Critical Buffer Overflow Vulnerability in TOTOLINK N150RT<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The world of cybersecurity is in a constant state of flux, with new vulnerabilities discovered and old vulnerabilities patched on a regular basis. One such recently discovered vulnerability, CVE-2025-3993, poses a significant threat to users of the TOTOLINK N150RT 3.4.0-B20190525. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32825-critical-sql-injection-vulnerability-in-telecontrol-server-basic\/\"  data-wpil-monitor-id=\"38781\">vulnerability is classified as critical<\/a> and could potentially lead to system compromise or data leakage if exploited. The issue affects unknown processing of the file \/boafrm\/formWsc, and the manipulation of the argument submit-url leads to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3619-critical-heap-buffer-overflow-vulnerability-in-google-chrome-codecs\/\"  data-wpil-monitor-id=\"40056\">buffer overflow<\/a>. Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1290-high-severity-race-condition-use-after-free-vulnerability-in-kernel-5-4-on-chromeos\/\"  data-wpil-monitor-id=\"41779\">severity of this vulnerability<\/a>, it is essential that affected users take immediate action to mitigate its risks.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-3993<br \/>\nSeverity: Critical, CVSS Score 8.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32849-vulnerability-in-telecontrol-server-basic-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"39246\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-976171806\" 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-2025-3991-critical-buffer-overflow-vulnerability-in-totolink-n150rt-3-4-0-b20190525\/\"  data-wpil-monitor-id=\"41074\">TOTOLINK N150RT<\/a> | 3.4.0-B20190525<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <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=\"39549\">vulnerability exists due to a buffer overflow<\/a> issue in the processing of the \/boafrm\/formWsc file. It is triggered when an oversized, specially crafted &#8216;submit-url&#8217; argument is supplied, which the software fails to handle correctly. This can lead to memory corruption, causing erratic program behavior, crashes, or potentially, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-40446-arbitrary-code-execution-vulnerability-in-forkosh-mime-tex\/\"  data-wpil-monitor-id=\"39882\">code execution<\/a>. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3200-unauthenticated-remote-attacker-exploiting-insecure-tls-protocols\/\"  data-wpil-monitor-id=\"40799\">attack can be initiated remotely<\/a> and does not require any user interaction.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-96989733\" 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>Here is a conceptual example of how the exploit might be used. Please note that this is a simplified version, meant for illustrative purposes.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/boafrm\/formWsc HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nsubmit-url=[malicious_payload]<\/code><\/pre>\n<p>In the above example, the &#8216;malicious_payload&#8217; is a string that exceeds the expected length, which causes the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3786-critical-buffer-overflow-vulnerability-in-tenda-ac15\/\"  data-wpil-monitor-id=\"40284\">buffer overflow<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2594-critical-vulnerability-in-user-registration-membership-wordpress-plugin\/\"  data-wpil-monitor-id=\"40474\">Users affected by this vulnerability<\/a> are strongly advised to apply the vendor patch as soon as possible. As a temporary mitigation measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to monitor and block any suspicious requests <a href=\"https:\/\/www.ameeba.com\/blog\/cisa-s-recent-warning-on-new-malware-targeting-ivanti-zero-day-vulnerability-a-comprehensive-analysis\/\"  data-wpil-monitor-id=\"39245\">targeting the vulnerable<\/a> endpoint.<br \/>\nIt&#8217;s important to note that while using a WAF\/IDS can help to protect against known attack patterns, it is not a permanent <a href=\"https:\/\/www.ameeba.com\/blog\/u-s-government-ends-funding-for-mitre-s-cve-potential-fallout-and-solutions-for-the-cybersecurity-community\/\"  data-wpil-monitor-id=\"38973\">solution and cannot guarantee full protection against potential<\/a> exploits. As such, the application of vendor patches should not be delayed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The world of cybersecurity is in a constant state of flux, with new vulnerabilities discovered and old vulnerabilities patched on a regular basis. One such recently discovered vulnerability, CVE-2025-3993, poses a significant threat to users of the TOTOLINK N150RT 3.4.0-B20190525. This vulnerability is classified as critical and could potentially lead to system compromise or [&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-34257","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\/34257","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=34257"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34257\/revisions"}],"predecessor-version":[{"id":37093,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34257\/revisions\/37093"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=34257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=34257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=34257"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=34257"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=34257"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=34257"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=34257"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=34257"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=34257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}