{"id":29636,"date":"2025-04-23T08:52:33","date_gmt":"2025-04-23T08:52:33","guid":{"rendered":""},"modified":"2025-09-27T02:05:18","modified_gmt":"2025-09-27T08:05:18","slug":"cve-2025-3693-critical-stack-based-buffer-overflow-in-tenda-w12-3-0-0-5","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3693-critical-stack-based-buffer-overflow-in-tenda-w12-3-0-0-5\/","title":{"rendered":"<strong>CVE-2025-3693: Critical Stack-Based Buffer Overflow in Tenda W12 3.0.0.5<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is ever-changing, and one of the latest threats to emerge is the CVE-2025-3693 vulnerability. This is a critical vulnerability found in the Tenda W12 3.0.0.5, a popular wireless router. This vulnerability, if exploited, can <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=\"33884\">lead to a stack-based buffer overflow<\/a>, potentially compromising the system or leading to data leakage. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3200-unauthenticated-remote-attacker-exploiting-insecure-tls-protocols\/\"  data-wpil-monitor-id=\"41322\">exploit has been publicly disclosed and can be remotely<\/a> launched, which makes it a serious concern for users and administrators of this device.<br \/>\nAs the function cgiWifiRadioSet of the file \/bin\/httpd is affected, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4954-critical-file-upload-vulnerability-in-axle-demo-importer-wordpress-plugin\/\"  data-wpil-monitor-id=\"60732\">vulnerability is of significant importance<\/a>. A successful exploit can lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-5881-unauthorized-access-vulnerability-in-the-genie-company-aladdin-connect\/\"  data-wpil-monitor-id=\"34012\">unauthorized system access<\/a>, data compromise, and potential hijacking of the device for malicious purposes. Therefore, it is <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48126-php-remote-file-inclusion-vulnerability-in-g5theme-essential-real-estate\/\"  data-wpil-monitor-id=\"62133\">essential to understand the nature of this vulnerability<\/a> and implement the appropriate mitigation measures.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-3693<br \/>\nSeverity: Critical (8.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: System compromise, potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50612-escalation-of-privileges-and-data-leakage-in-fit2cloud-cloud-explorer-lite\/\"  data-wpil-monitor-id=\"41321\">data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-499753336\" 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-2025-4007-critical-stack-based-buffer-overflow-vulnerability-in-tenda-w12-and-i24\/\"  data-wpil-monitor-id=\"41320\">Tenda W12<\/a> | 3.0.0.5<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by manipulating the cgiWifiRadioSet function of the \/bin\/httpd file in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3803-critical-vulnerability-in-tenda-w12-and-i24-3-0-0-4-3-0-0-5-resulting-in-stack-based-buffer-overflow\/\"  data-wpil-monitor-id=\"41553\">Tenda W12<\/a> version 3.0.0.5. This manipulation leads to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-52309-heap-buffer-overflow-vulnerability-in-paddlepaddle\/\"  data-wpil-monitor-id=\"33975\">buffer overflow<\/a>, which is a type of error where the stack pointer exceeds the stack bound. This can overwrite valuable data and control information, which can corrupt the system and lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26733-unauthorized-access-vulnerability-in-shinetheme-traveler-software\/\"  data-wpil-monitor-id=\"34227\">unauthorized access<\/a> or system crashes.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1350342635\" 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 this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication\/\"  data-wpil-monitor-id=\"35993\">vulnerability might be exploited<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/cgi-bin\/httpd\/cgiWifiRadioSet HTTP\/1.1\nHost: vulnerable-tenda-router.com\nContent-Type: application\/x-www-form-urlencoded\n{&quot;wifiRadioSet&quot;: &quot;OVERFLOWING_PAYLOAD_STRING&quot;}<\/code><\/pre>\n<p>In this example, the attacker sends an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9779-totolink-a702r-buffer-overflow-vulnerability-in-the-function-sub-4162dc\/\"  data-wpil-monitor-id=\"85119\">overflowing payload string to the cgiWifiRadioSet function<\/a>. This can <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=\"33932\">overflow the stack<\/a> buffer, potentially leading to unauthorized access and system compromise. Note that this is a simplified example and actual exploitation might require more complex methods and a deep understanding of the system internals.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>As a mitigation measure, it is recommended to apply the vendor patch immediately if available. If the patch is not available or cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These can help detect and block exploit attempts. However, they are not a permanent solution and the patch should be applied as soon as possible.<br \/>\nRemember, the best defense against such <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3495-critical-security-vulnerability-in-delta-electronics-commgr-due-to-insufficiently-randomized-session-ids\/\"  data-wpil-monitor-id=\"35992\">vulnerabilities is a proactive approach to security<\/a>. Regularly updating your systems, using intrusion detection systems, and <a href=\"https:\/\/www.ameeba.com\/blog\/cisa-s-warning-following-oracle-cloud-breach-a-call-to-secure-company-credentials\/\"  data-wpil-monitor-id=\"35994\">following best security<\/a> practices can significantly reduce the risk of such exploits.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is ever-changing, and one of the latest threats to emerge is the CVE-2025-3693 vulnerability. This is a critical vulnerability found in the Tenda W12 3.0.0.5, a popular wireless router. This vulnerability, if exploited, can lead to a stack-based buffer overflow, potentially compromising the system or leading to data leakage. The exploit [&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":[103],"product":[104],"attack_vector":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-29636","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apache","product-apache-httpd","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/29636","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=29636"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/29636\/revisions"}],"predecessor-version":[{"id":77906,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/29636\/revisions\/77906"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=29636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=29636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=29636"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=29636"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=29636"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=29636"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=29636"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=29636"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=29636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}