{"id":59319,"date":"2025-07-12T03:42:47","date_gmt":"2025-07-12T03:42:47","guid":{"rendered":""},"modified":"2025-08-29T01:22:24","modified_gmt":"2025-08-29T07:22:24","slug":"cve-2025-50258-buffer-overflow-vulnerability-in-tenda-ac6-router","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-50258-buffer-overflow-vulnerability-in-tenda-ac6-router\/","title":{"rendered":"<strong>CVE-2025-50258: Buffer Overflow Vulnerability in Tenda AC6 Router<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the ever-evolving landscape of cybersecurity, a new vulnerability has been discovered in Tenda AC6 v15.03.05.16_multi routers. This vulnerability, identified as CVE-2025-50258, has been found to be susceptible to a buffer overflow attack via the SetSysTimeCfg function. This issue affects a wide range of users, from individual households to enterprise networks that use the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7805-critical-vulnerability-in-tenda-fh451-1-0-0-9-leading-to-remote-buffer-overflow-attacks\/\"  data-wpil-monitor-id=\"67653\">vulnerable version of Tenda<\/a> AC6 routers. The severity of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50067-critical-vulnerability-in-oracle-application-express-allowing-system-takeover\/\"  data-wpil-monitor-id=\"67321\">vulnerability lies in its potential to compromise systems<\/a> or leak data, which is a significant threat to privacy and information security.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-50258<br \/>\nSeverity: High (8.1 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49691-heap-based-buffer-overflow-in-windows-media-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"72109\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3302202321\" 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-2025-50263-buffer-overflow-vulnerability-in-tenda-ac6-routers\/\"  data-wpil-monitor-id=\"69068\">Tenda AC6<\/a> Router | v15.03.05.16_multi<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability arises from a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7596-critical-remote-buffer-overflow-vulnerability-in-tenda-fh1205\/\"  data-wpil-monitor-id=\"66431\">buffer overflow<\/a> condition in the SetSysTimeCfg function of the Tenda AC6 router. A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47998-severe-heap-based-buffer-overflow-vulnerability-in-windows-routing-and-remote-access-service\/\"  data-wpil-monitor-id=\"67320\">buffer overflow<\/a> occurs when more data is written to a buffer than it can handle, causing an overflow of data into adjacent memory locations. In this case, the overflow is triggered via the time parameter, allowing a malicious attacker to execute <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25214-race-condition-vulnerability-in-wwbn-avideo-14-4-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"67654\">arbitrary code<\/a> or cause a denial of service.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3132891145\" 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 a malformed HTTP <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52362-critical-server-side-request-forgery-vulnerability-in-phproxy\/\"  data-wpil-monitor-id=\"72111\">request that could exploit this vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/SetSysTimeCfg HTTP\/1.1\nHost: target.router.ip\nContent-Type: application\/json\n{\n&quot;time&quot;: &quot;&lt;buffer overflow inducing string&gt;&quot;\n}<\/code><\/pre>\n<p>In the above example, &#8220; would be replaced by a string that causes the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8159-critical-remote-buffer-overflow-vulnerability-in-d-link-dir-513-1-0\/\"  data-wpil-monitor-id=\"67374\">buffer to overflow<\/a>, potentially allowing arbitrary code execution.<\/p>\n<p><strong>Impact and Mitigation<\/strong><\/p>\n<p>The impact of this vulnerability is severe, as it could potentially allow an attacker to compromise the entire <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7793-critical-vulnerability-in-tenda-fh451-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"69069\">system or lead<\/a> to data leakage. The CVSS score of 8.1 further emphasizes the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40600-severe-externally-controlled-format-string-vulnerability-in-sonicos-ssl-vpn-interface\/\"  data-wpil-monitor-id=\"69764\">severity of this vulnerability<\/a>.<br \/>\nTo mitigate this vulnerability, users are urged to apply the vendor patch as soon as it becomes available. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can detect and block suspicious activities, providing a layer of protection against potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42959-unauthenticated-replay-attack-exploiting-hmac-reuse\/\"  data-wpil-monitor-id=\"72110\">attacks exploiting<\/a> this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the ever-evolving landscape of cybersecurity, a new vulnerability has been discovered in Tenda AC6 v15.03.05.16_multi routers. This vulnerability, identified as CVE-2025-50258, has been found to be susceptible to a buffer overflow attack via the SetSysTimeCfg function. This issue affects a wide range of users, from individual households to enterprise networks that use the [&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-59319","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\/59319","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=59319"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59319\/revisions"}],"predecessor-version":[{"id":64922,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59319\/revisions\/64922"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59319"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59319"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59319"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59319"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59319"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59319"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}