{"id":81405,"date":"2025-10-03T18:49:18","date_gmt":"2025-10-03T18:49:18","guid":{"rendered":""},"modified":"2025-10-15T16:37:14","modified_gmt":"2025-10-15T22:37:14","slug":"cve-2025-11123-critical-remote-stack-based-buffer-overflow-vulnerability-in-tenda-ac18","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-11123-critical-remote-stack-based-buffer-overflow-vulnerability-in-tenda-ac18\/","title":{"rendered":"<strong>CVE-2025-11123: Critical Remote Stack-Based Buffer Overflow Vulnerability in Tenda AC18<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical flaw has been identified in the Tenda AC18 wireless router, specifically in the 15.03.05.19 version. This vulnerability, registered as CVE-2025-11123, affects an unknown function of the file \/goform\/saveAutoQos and can be exploited remotely by attackers. Exhibiting a high CVSS severity score of 8.8, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-41148-serious-code-injection-vulnerability-in-robot-operating-system-ros\/\"  data-wpil-monitor-id=\"88935\">vulnerability is a serious<\/a> concern for users and organizations that utilize Tenda AC18 routers in their network infrastructure. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-58353-critical-vulnerability-in-promptcraft-forge-studio-due-to-regex-blacklist-sanitization\/\"  data-wpil-monitor-id=\"88643\">vulnerability warrants immediate attention due<\/a> to its potential for system compromise and data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-11123<br \/>\nSeverity: Critical (CVSS: 8.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9443-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1-potentially-leads-to-system-compromise\/\"  data-wpil-monitor-id=\"89008\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-90433177\" 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>Tenda AC18 | 15.03.05.19<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9525-critical-stack-based-buffer-overflow-vulnerability-in-linksys-e1700\/\"  data-wpil-monitor-id=\"88800\">vulnerability allows an attacker to cause a stack-based buffer overflow<\/a> through manipulation of the &#8216;enable&#8217; argument in the \/goform\/saveAutoQos file. This overflow can potentially lead to an attacker <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-58757-remote-code-execution-vulnerability-in-monai-ai-toolkit\/\"  data-wpil-monitor-id=\"88597\">executing arbitrary code<\/a> on the system, thereby gaining unauthorized access. The attacker doesn&#8217;t require any user interaction or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52837-privilege-escalation-vulnerability-in-trend-micro-password-manager\/\"  data-wpil-monitor-id=\"88601\">privileges to exploit this vulnerability<\/a>, increasing the risk factor.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1793493227\" 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 vulnerability might be exploited. This example uses an HTTP POST request to send a malicious payload to the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9712-critical-remote-code-execution-vulnerability-in-ivanti-endpoint-manager\/\"  data-wpil-monitor-id=\"89103\">vulnerable endpoint<\/a>.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/saveAutoQos HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;enable&quot;: &quot;malicious_code_that_causes_buffer_overflow&quot; }<\/code><\/pre>\n<p>In the above example, `malicious_code_that_causes_buffer_overflow` represents the payload that an attacker might use to trigger the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9526-stack-based-buffer-overflow-vulnerability-in-linksys-e1700\/\"  data-wpil-monitor-id=\"88815\">buffer overflow vulnerability<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users and administrators should immediately apply the patch provided by the vendor. If the patch is not available or cannot be applied immediately, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure to detect and prevent exploit attempts. Regular monitoring of <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=\"89983\">system logs and network<\/a> traffic can also aid in identifying potential attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical flaw has been identified in the Tenda AC18 wireless router, specifically in the 15.03.05.19 version. This vulnerability, registered as CVE-2025-11123, affects an unknown function of the file \/goform\/saveAutoQos and can be exploited remotely by attackers. Exhibiting a high CVSS severity score of 8.8, this vulnerability is a serious concern for users and [&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-81405","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\/81405","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=81405"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81405\/revisions"}],"predecessor-version":[{"id":82860,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81405\/revisions\/82860"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=81405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=81405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=81405"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=81405"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=81405"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=81405"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=81405"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=81405"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=81405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}