{"id":69814,"date":"2025-09-02T11:27:51","date_gmt":"2025-09-02T11:27:51","guid":{"rendered":""},"modified":"2025-09-29T02:51:00","modified_gmt":"2025-09-29T08:51:00","slug":"cve-2025-9523-critical-stack-based-buffer-overflow-vulnerability-in-tenda-ac1206","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-9523-critical-stack-based-buffer-overflow-vulnerability-in-tenda-ac1206\/","title":{"rendered":"<strong>CVE-2025-9523: Critical Stack-Based Buffer Overflow Vulnerability in Tenda AC1206<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is once again under threat following the detection of a severe vulnerability termed as CVE-2025-9523. This critical security flaw is present within the Tenda AC1206 15.03.06.23, a popular networking device used worldwide. Given the severity of the vulnerability, immediate attention is required from all organizations and individuals using the affected product to avoid <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42950-sap-landscape-transformation-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"77547\">potential system<\/a> compromise or data leakage.<br \/>\nThis vulnerability is particularly concerning as it allows remote attackers to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1411-exploitation-of-unnecessary-privileges-in-ibm-security-verify-directory-container\/\"  data-wpil-monitor-id=\"78104\">exploit the system without needing any privileges<\/a>, making it an attractive target for cybercriminals aiming to exploit unprotected systems.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-9523<br \/>\nSeverity: Critical (CVSS 9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8939-buffer-overflow-vulnerability-in-tenda-ac20-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78256\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-686010172\" 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 AC1206 | 15.03.06.23<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55746-unauthenticated-file-manipulation-vulnerability-in-directus\/\"  data-wpil-monitor-id=\"78730\">vulnerability occurs within the &#8216;GetParentControlInfo&#8217; function of the file<\/a> &#8216;\/goform\/GetParentControlInfo. The flaw lies in the improper handling of the &#8216;mac&#8217; argument, leading to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54878-heap-buffer-overflow-vulnerability-in-nasa-cryptolib\/\"  data-wpil-monitor-id=\"77475\">buffer overflow<\/a>. By manipulating this argument, remote attackers can cause the system to write data beyond its buffer boundaries, potentially <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21165-out-of-bounds-write-vulnerability-in-substance3d-designer-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"77447\">leading to arbitrary code<\/a> execution, denial of service, or unauthorized information disclosure.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1712731544\" 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 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49527-buffer-overflow-vulnerability-in-illustrator-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"78163\">illustration of how the vulnerability<\/a> might be exploited. An attacker could potentially send a malicious HTTP request like the following:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/GetParentControlInfo HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;mac&quot;: &quot;AAAAAAAAAAAAAAAAAAA....&quot; } \/\/ A long string that exceeds buffer capacity<\/code><\/pre>\n<p>In this example, the &#8216;mac&#8217; argument is filled with an excessively long string which exceeds the buffer&#8217;s capacity, triggering a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53131-heap-based-buffer-overflow-vulnerability-in-windows-media\/\"  data-wpil-monitor-id=\"77609\">buffer overflow<\/a> and potentially allowing malicious code execution.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>For all users and organizations that have deployed the Tenda AC1206 product with the affected version, it is recommended to apply the vendor patch as soon as <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54742-data-deserialization-vulnerability-in-wpevently-leading-to-possible-system-compromise\/\"  data-wpil-monitor-id=\"86535\">possible to mitigate this vulnerability<\/a>. In the absence of a vendor patch, adopting Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) may serve as temporary mitigation. However, these should not be considered as long-term solutions as they may not fully protect the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47107-heap-based-buffer-overflow-vulnerability-in-incopy-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78332\">systems from the vulnerability<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is once again under threat following the detection of a severe vulnerability termed as CVE-2025-9523. This critical security flaw is present within the Tenda AC1206 15.03.06.23, a popular networking device used worldwide. Given the severity of the vulnerability, immediate attention is required from all organizations and individuals using the affected product [&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":[86,87,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-69814","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-dos","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69814","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=69814"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69814\/revisions"}],"predecessor-version":[{"id":79319,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69814\/revisions\/79319"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=69814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=69814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=69814"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=69814"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=69814"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=69814"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=69814"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=69814"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=69814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}