{"id":28742,"date":"2025-04-22T01:38:39","date_gmt":"2025-04-22T01:38:39","guid":{"rendered":""},"modified":"2025-09-07T17:19:48","modified_gmt":"2025-09-07T23:19:48","slug":"cve-2025-22900-stack-overflow-vulnerability-in-totolink-n600r-leading-to-potential-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-22900-stack-overflow-vulnerability-in-totolink-n600r-leading-to-potential-system-compromise\/","title":{"rendered":"<strong>CVE-2025-22900: Stack Overflow Vulnerability in Totolink N600R Leading to Potential System Compromise<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The vulnerability designated as CVE-2025-22900 is a serious security flaw discovered in Totolink N600R v4.3.0cu.7647_B20210106. It primarily affects users of the Totolink N600R, a popular wireless router. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-56406-buffer-overflow-vulnerability-in-perl-leading-to-potential-denial-of-service-and-code-execution\/\"  data-wpil-monitor-id=\"33109\">vulnerability lies in a stack overflow<\/a> that can be triggered by the macCloneMac parameter in the setWanConfig function. This vulnerability is of particular concern as an attacker could exploit this flaw to compromise the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-5905-unauthorized-data-export-vulnerability-in-demomentsomtres-wordpress-export-posts-with-images-plugin\/\"  data-wpil-monitor-id=\"34656\">system<\/a> or possibly leak sensitive data.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37297-vulnerability-in-ami-s-spx-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"33394\">potential impacts of this vulnerability<\/a> cannot be overstated. With the increasing number of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48000-critical-privilege-escalation-vulnerability-in-windows-connected-devices-platform-service\/\"  data-wpil-monitor-id=\"80275\">devices connected<\/a> to the internet, ensuring the security of networking devices such as routers is of paramount importance. A successful exploit of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32650-sql-injection-vulnerability-in-ability-inc-s-accessibility-suite\/\"  data-wpil-monitor-id=\"33204\">vulnerability could give an attacker unauthorized access<\/a> to the user&#8217;s network and connected devices.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-22900<br \/>\nSeverity: Critical (CVSS:9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: System Compromise, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50350-broken-cryptographic-algorithm-leads-to-potential-data-leakage-in-hcl-dryice-myxalytics\/\"  data-wpil-monitor-id=\"33663\">Potential Data Leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3037329688\" 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>Totolink N600R | v4.3.0cu.7647_B20210106<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by sending a specially crafted request to the target device, including the macCloneMac parameter within the setWanConfig function. The macCloneMac parameter is not properly sanitized by the system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0213-buffer-overflow-vulnerability-in-ta-for-linux-and-macos-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"33876\">leading to a stack overflow<\/a> condition. The overflow condition can allow an attacker to execute <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-42970-use-after-free-vulnerability-in-multiple-apple-platforms-may-lead-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"33020\">arbitrary code<\/a> or disrupt the normal functioning of the device.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3076035590\" 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 is a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication\/\"  data-wpil-monitor-id=\"34911\">vulnerability might be exploited<\/a>. This could be a sample HTTP request, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-11861-critical-command-injection-vulnerability-in-enersys-ampa-granting-privileged-remote-shell-access\/\"  data-wpil-monitor-id=\"45238\">shell command<\/a>, or pseudocode.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/setWanConfig HTTP\/1.1\nHost: target_router_ip\nContent-Type: application\/json\n{ &quot;macCloneMac&quot;: &quot;Overflowing string value here&quot; }<\/code><\/pre>\n<p>In this example, the macCloneMac parameter is being set with an overly long string value, which triggers the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-52307-high-severity-stack-overflow-vulnerability-in-paddlepaddle-prior-to-version-2-6-0\/\"  data-wpil-monitor-id=\"33922\">stack overflow<\/a> condition in the setWanConfig function.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>In <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31928-sql-injection-vulnerability-in-lambertgroup-multimedia-responsive-carousel\/\"  data-wpil-monitor-id=\"50569\">response to this vulnerability<\/a>, users are advised to apply the patch provided by the vendor as soon as possible. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. However, these should not replace patching the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4279-critical-arbitrary-file-upload-vulnerability-in-wordpress-external-image-replace-plugin\/\"  data-wpil-monitor-id=\"43221\">system<\/a> as they only provide a layer of defense and do not remove the vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The vulnerability designated as CVE-2025-22900 is a serious security flaw discovered in Totolink N600R v4.3.0cu.7647_B20210106. It primarily affects users of the Totolink N600R, a popular wireless router. The vulnerability lies in a stack overflow that can be triggered by the macCloneMac parameter in the setWanConfig function. This vulnerability is of particular concern as an [&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-28742","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\/28742","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=28742"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28742\/revisions"}],"predecessor-version":[{"id":72693,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28742\/revisions\/72693"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=28742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=28742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=28742"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=28742"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=28742"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=28742"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=28742"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=28742"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=28742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}