{"id":59482,"date":"2025-07-19T03:56:40","date_gmt":"2025-07-19T03:56:40","guid":{"rendered":""},"modified":"2025-08-31T06:32:16","modified_gmt":"2025-08-31T12:32:16","slug":"cve-2025-7550-critical-buffer-overflow-vulnerability-in-tenda-fh1201-1-2-0-14-408","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7550-critical-buffer-overflow-vulnerability-in-tenda-fh1201-1-2-0-14-408\/","title":{"rendered":"<strong>CVE-2025-7550: Critical Buffer Overflow Vulnerability in Tenda FH1201 1.2.0.14(408)<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability, identified as CVE-2025-7550, has been discovered in Tenda&#8217;s FH1201 1.2.0.14(408) firmware. This vulnerability, if exploited, could potentially lead to a system compromise or data leakage. It resides in the function fromGstDhcpSetSer of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28946-php-remote-file-inclusion-vulnerability-in-bzotheme-printxtore\/\"  data-wpil-monitor-id=\"66192\">file \/goform\/GstDhcpSetSer and can be triggered remotely<\/a> through the improper handling of the argument &#8216;dips. As Tenda routers are widely used, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50738-memos-application-vulnerability-allows-for-unauthorized-user-information-disclosure\/\"  data-wpil-monitor-id=\"71020\">vulnerability could potentially impact a large number of users<\/a> and systems.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-7550<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-2025-7837-critical-vulnerability-in-totolink-t6-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"71019\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1626813829\" 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-2025-7549-critical-vulnerability-in-tenda-fh1201-allows-remote-stack-based-buffer-overflow\/\"  data-wpil-monitor-id=\"67666\">Tenda FH1201<\/a> | 1.2.0.14(408)<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53076-critical-overread-buffers-vulnerability-in-samsung-s-rlottie\/\"  data-wpil-monitor-id=\"66223\">vulnerability is a stack-based buffer<\/a> overflow issue. It occurs when the fromGstDhcpSetSer function of the \/goform\/GstDhcpSetSer file in the Tenda FH1201 1.2.0.14(408) firmware fails to properly validate the length of user-supplied data before copying it to a fixed-length, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7597-critical-stack-based-buffer-overflow-vulnerability-in-tenda-ax1803-1-0-0-1\/\"  data-wpil-monitor-id=\"66961\">stack-based buffer<\/a>. This flaw could allow an attacker to overwrite the buffer&#8217;s content with arbitrary malicious data, potentially <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41668-critical-file-replacement-leading-to-unauthorized-access\/\"  data-wpil-monitor-id=\"66310\">leading to the execution of unauthorized<\/a> code or commands.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1744924840\" 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>An attacker could exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8243-critical-buffer-overflow-vulnerability-in-totolink-x15-http-post-request-handler\/\"  data-wpil-monitor-id=\"66962\">vulnerability by sending a specially crafted HTTP request<\/a> that contains an oversized &#8216;dips&#8217; argument. Here&#8217;s a simplified, conceptual example of how such an HTTP request might look:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/GstDhcpSetSer HTTP\/1.1\nHost: vulnerable-router\nContent-Type: application\/x-www-form-urlencoded\ndips=&lt;malicious_payload&gt;<\/code><\/pre>\n<p>In this example, &#8220; would be a string that is long enough to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7596-critical-remote-buffer-overflow-vulnerability-in-tenda-fh1205\/\"  data-wpil-monitor-id=\"66396\">overflow the stack-based buffer in the vulnerable<\/a> function.<\/p>\n<p><strong>Mitigation and Prevention<\/strong><\/p>\n<p>Users are advised to apply the vendor-provided patch as soon as possible. If the patch cannot be applied immediately, users can protect themselves by deploying a web application firewall (WAF) or an intrusion detection system (IDS) that can detect and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76373\">block attempts to exploit this vulnerability<\/a>. However, these are only temporary measures and the ultimate solution is to apply the vendor&#8217;s patch.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability, identified as CVE-2025-7550, has been discovered in Tenda&#8217;s FH1201 1.2.0.14(408) firmware. This vulnerability, if exploited, could potentially lead to a system compromise or data leakage. It resides in the function fromGstDhcpSetSer of the file \/goform\/GstDhcpSetSer and can be triggered remotely through the improper handling of the argument &#8216;dips. As Tenda routers [&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-59482","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\/59482","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=59482"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59482\/revisions"}],"predecessor-version":[{"id":68831,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59482\/revisions\/68831"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59482"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59482"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59482"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59482"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59482"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59482"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}