{"id":59462,"date":"2025-07-18T06:47:05","date_gmt":"2025-07-18T06:47:05","guid":{"rendered":""},"modified":"2025-10-15T16:37:17","modified_gmt":"2025-10-15T22:37:17","slug":"cve-2025-52089-remote-command-execution-vulnerability-in-totolink-n300rb-firmware","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-52089-remote-command-execution-vulnerability-in-totolink-n300rb-firmware\/","title":{"rendered":"<strong>CVE-2025-52089: Remote Command Execution Vulnerability in TOTOLINK N300RB Firmware<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity world constantly witnesses the emergence of new vulnerabilities that threaten the security and integrity of various systems. One such vulnerability, CVE-2025-52089, poses a significant threat to users of TOTOLINK N300RB firmware version 8.54. This firmware contains a hidden <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54031-critical-php-remote-file-inclusion-vulnerability-in-schiocco-support-board\/\"  data-wpil-monitor-id=\"85098\">remote support<\/a> feature that is protected by a static secret. Unfortunately, this feature can be exploited by an authenticated attacker to execute arbitrary Operating System (OS) <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52688-critical-vulnerability-allowing-root-command-injection-on-access-point\/\"  data-wpil-monitor-id=\"70101\">commands with root<\/a> privileges. The ability to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54416-arbitrary-command-execution-vulnerability-in-tj-actions-branch-names-github-action\/\"  data-wpil-monitor-id=\"69542\">execute these commands<\/a> could potentially lead to a system compromise or data leakage, putting sensitive information at risk.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-52089<br \/>\nSeverity: High (8.8)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: High<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7837-critical-vulnerability-in-totolink-t6-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"71030\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2109523903\" 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>TOTOLINK N300RB Firmware | Version 8.54<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>An attacker who has successfully authenticated on the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-33077-local-stack-based-buffer-overflow-vulnerability-in-ibm-engineering-systems-design-rhapsody\/\"  data-wpil-monitor-id=\"69544\">vulnerable system<\/a> can exploit this vulnerability by sending specially crafted requests to the hidden remote support feature. Since this feature is protected by a static secret, the attacker can bypass the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7097-critical-command-injection-vulnerability-in-comodo-internet-security-premium\/\"  data-wpil-monitor-id=\"68291\">security measures and execute arbitrary OS commands<\/a> with root privileges. This allows the attacker to gain complete control over the system and potentially access, modify, or delete <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43233-critical-https-proxy-vulnerability-allowing-sensitive-data-access\/\"  data-wpil-monitor-id=\"69543\">sensitive data<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4221211899\" 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 the nature of this vulnerability, an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42959-unauthenticated-replay-attack-exploiting-hmac-reuse\/\"  data-wpil-monitor-id=\"78007\">attacker might exploit<\/a> it using a HTTP request like the following example:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/remote_support HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\nAuthorization: Bearer static_secret\n{ &quot;os_command&quot;: &quot;rm -rf \/&quot; }<\/code><\/pre>\n<p>In this example, the attacker sends a POST request to the `remote_support` endpoint, which is part of the hidden remote support feature. The `Authorization` header contains the static secret that protects this feature. The body of the request contains a JSON <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55010-arbitrary-php-object-instantiation-in-kanboard-prior-to-version-1-2-47\/\"  data-wpil-monitor-id=\"78006\">object with a property `os_command` that specifies an arbitrary<\/a> OS command. In this case, the command `rm -rf \/` is a dangerous Unix command that <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7778-arbitrary-file-deletion-vulnerability-in-icons-factory-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"79661\">deletes all files<\/a> from the root directory.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Users of the affected TOTOLINK <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8242-critical-buffer-overflow-vulnerability-in-totolink-x15\/\"  data-wpil-monitor-id=\"68290\">N300RB<\/a> firmware version are urged to apply the vendor patch as soon as possible to mitigate this vulnerability. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-12913-sql-injection-vulnerability-in-megatek-communication-system-azora-wireless-network-management\/\"  data-wpil-monitor-id=\"89992\">systems can monitor network<\/a> traffic for suspicious activity and block malicious requests, making it more difficult for an attacker to exploit this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity world constantly witnesses the emergence of new vulnerabilities that threaten the security and integrity of various systems. One such vulnerability, CVE-2025-52089, poses a significant threat to users of TOTOLINK N300RB firmware version 8.54. This firmware contains a hidden remote support feature that is protected by a static secret. Unfortunately, this feature can [&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-59462","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\/59462","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=59462"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59462\/revisions"}],"predecessor-version":[{"id":82869,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59462\/revisions\/82869"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59462"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59462"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59462"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59462"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59462"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59462"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}