{"id":37778,"date":"2025-05-13T16:32:52","date_gmt":"2025-05-13T16:32:52","guid":{"rendered":""},"modified":"2025-05-18T11:01:43","modified_gmt":"2025-05-18T11:01:43","slug":"cve-2025-4354-critical-stack-based-buffer-overflow-vulnerability-in-tenda-dap-1520","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-4354-critical-stack-based-buffer-overflow-vulnerability-in-tenda-dap-1520\/","title":{"rendered":"<strong>CVE-2025-4354: Critical Stack-Based Buffer Overflow Vulnerability in Tenda DAP-1520<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A serious vulnerability has been identified in the Tenda DAP-1520 1.10B04_BETA02, a popular network optimization device used in various sectors. This vulnerability, designated as CVE-2025-4354, is classified as critical and possesses the potential to compromise systems or lead to data leakage. Being a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4150-critical-buffer-overflow-vulnerability-in-netgear-ex6200-1-0-3-94\/\"  data-wpil-monitor-id=\"42446\">buffer overflow vulnerability<\/a>, it poses a significant risk as it can be remotely exploited by attackers, thereby necessitating immediate attention and mitigation.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-4354<br \/>\nSeverity: Critical, CVSS 8.8<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30165-potential-system-compromise-in-vllm-v0-engine\/\"  data-wpil-monitor-id=\"44041\">System compromise<\/a>, Data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1992553305\" 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>Tenda DAP-1520 | 1.10B04_BETA02<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability lies in the function check_dws_cookie of the file \/storage in the affected <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3802-critical-vulnerability-in-tenda-wifi-routers\/\"  data-wpil-monitor-id=\"42575\">Tenda<\/a> device. The manipulation of this function leads to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4148-critical-buffer-overflow-vulnerability-in-netgear-ex6200\/\"  data-wpil-monitor-id=\"42573\">buffer overflow<\/a>. A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4149-critical-buffer-overflow-vulnerability-in-netgear-ex6200-1-0-3-94\/\"  data-wpil-monitor-id=\"42574\">buffer overflow<\/a> occurs when more data is put into a fixed-length buffer than it can handle, causing the extra data to overflow, overwrite adjacent memory, and potentially execute arbitrary code. In this case, a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4096-remote-heap-buffer-overflow-vulnerability-in-google-chrome-html-processing\/\"  data-wpil-monitor-id=\"43119\">remote attacker can exploit this vulnerability<\/a> to compromise the system or leak data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1472782092\" 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&#8217;s a conceptual example of how a HTTP <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1305-cross-site-request-forgery-csrf-vulnerability-in-newsblogger-wordpress-theme\/\"  data-wpil-monitor-id=\"42519\">request may exploit this vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/storage\/check_dws_cookie HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;buffer_overflow&quot;: &quot;A_LONG_STRING_THAT_CAUSES_OVERFLOW...&quot; }<\/code><\/pre>\n<p>In this example, the &#8220;buffer_overflow&#8221; field contains a string that is longer than what the buffer in the function check_dws_cookie can handle, causing a buffer <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-36864-integer-overflow-vulnerability-in-gtkwave-3-3-115-with-potential-for-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"42470\">overflow and potentially allowing arbitrary code<\/a> execution.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>As a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37282-critical-out-of-bounds-write-vulnerability-in-gtkwave-3-3-115\/\"  data-wpil-monitor-id=\"42580\">critical vulnerability<\/a> with a public exploit, CVE-2025-4354 requires immediate mitigation. Users of the affected Tenda DAP-1520 version are advised to apply the vendor patch as soon as it becomes available. Until then, temporary mitigation can be achieved by using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block exploit attempts. As always, it is recommended to keep all <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-49126-critical-vulnerability-in-solid-edge-se2023-allows-for-potential-system-compromise\/\"  data-wpil-monitor-id=\"43431\">systems and software up-to-date to prevent exploitation of known vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A serious vulnerability has been identified in the Tenda DAP-1520 1.10B04_BETA02, a popular network optimization device used in various sectors. This vulnerability, designated as CVE-2025-4354, is classified as critical and possesses the potential to compromise systems or lead to data leakage. Being a stack-based buffer overflow vulnerability, it poses a significant risk as it [&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":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-37778","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37778","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=37778"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37778\/revisions"}],"predecessor-version":[{"id":39415,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37778\/revisions\/39415"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=37778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=37778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=37778"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=37778"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=37778"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=37778"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=37778"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=37778"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=37778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}