{"id":28355,"date":"2025-04-21T15:34:26","date_gmt":"2025-04-21T15:34:26","guid":{"rendered":""},"modified":"2025-09-14T23:36:48","modified_gmt":"2025-09-15T05:36:48","slug":"cve-2025-28137-critical-pre-auth-remote-command-execution-vulnerability-in-totolink-a810r","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-28137-critical-pre-auth-remote-command-execution-vulnerability-in-totolink-a810r\/","title":{"rendered":"<strong>CVE-2025-28137: Critical Pre-Auth Remote Command Execution Vulnerability in TOTOLINK A810R<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-28137 is a critical vulnerability discovered in the TOTOLINK A810R V4.1.2cu.5182_B20201026, a popular wireless router model. The device was found to contain a pre-authentication remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter. The implications of this <a href=\"https:\/\/www.ameeba.com\/blog\/us-cybersecurity-firm-welcomes-new-co-chief-executives-industry-implications-and-outlook\/\"  data-wpil-monitor-id=\"32888\">vulnerability<\/a> are severe as it allows an attacker to execute arbitrary commands on a vulnerable device without requiring any form of authentication. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32568-critical-deserialization-of-untrusted-data-vulnerability-in-empikplace-for-woocommerce\/\"  data-wpil-monitor-id=\"32631\">vulnerability has been rated as critical<\/a> due to its high impact on confidentiality, integrity, and availability.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-28137<br \/>\nSeverity: Critical (9.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37297-vulnerability-in-ami-s-spx-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"33417\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3164368895\" 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-2025-28024-buffer-overflow-vulnerability-in-totolink-a810r-v4-1-2cu-5182-b20201026\/\"  data-wpil-monitor-id=\"39586\">TOTOLINK A810R<\/a> | V4.1.2cu.5182_B20201026<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22900-stack-overflow-vulnerability-in-totolink-n600r-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"35179\">vulnerability resides in the setNoticeCfg function of the TOTOLINK<\/a> A810R firmware, specifically within the NoticeUrl parameter. An attacker can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32931-critical-os-command-injection-vulnerability-in-devdojo-voyager\/\"  data-wpil-monitor-id=\"33561\">vulnerability by sending a specially crafted request containing malicious commands<\/a> to this function. The router firmware fails to adequately sanitize the input to this function, which <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-48243-critical-remote-code-execution-vulnerability-allowing-unauthorized-file-upload\/\"  data-wpil-monitor-id=\"34108\">allows the attacker&#8217;s commands to be executed<\/a> with root privileges on the device.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-733240906\" 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 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication\/\"  data-wpil-monitor-id=\"35180\">vulnerability might be exploited<\/a>. This is a simple HTTP request where the attacker <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-6634-command-injection-vulnerability-in-learnpress-wordpress-plugin\/\"  data-wpil-monitor-id=\"34521\">injects malicious commands<\/a> into the NoticeUrl parameter.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/setNoticeCfg HTTP\/1.1\nHost: &lt;Router_IP_Address&gt;\nContent-Type: application\/x-www-form-urlencoded\nNoticeUrl=; &lt;malicious_command&gt;;<\/code><\/pre>\n<p>In this example, replace &#8220; with the IP address of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-21860-arbitrary-code-execution-vulnerability-in-openharmony\/\"  data-wpil-monitor-id=\"33844\">vulnerable router and &#8220; with the command<\/a> you wish to execute on the device. The semicolon (`;`) is used to separate the legitimate NoticeUrl value from the malicious command.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The best mitigation <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46658-critical-security-vulnerability-in-exonautweb-s-4c-strategies-exonaut-21-6\/\"  data-wpil-monitor-id=\"82474\">strategy for this vulnerability<\/a> is to apply the vendor&#8217;s patch. It is also highly recommended to implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation until the patch can be applied. Regularly update and patch your <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=\"33897\">systems to avoid falling victim to such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-28137 is a critical vulnerability discovered in the TOTOLINK A810R V4.1.2cu.5182_B20201026, a popular wireless router model. The device was found to contain a pre-authentication remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter. The implications of this vulnerability are severe as it allows an attacker to execute arbitrary commands on a [&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-28355","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\/28355","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=28355"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28355\/revisions"}],"predecessor-version":[{"id":74993,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28355\/revisions\/74993"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=28355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=28355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=28355"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=28355"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=28355"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=28355"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=28355"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=28355"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=28355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}