{"id":59621,"date":"2025-07-25T00:06:23","date_gmt":"2025-07-25T00:06:23","guid":{"rendered":""},"modified":"2025-08-31T06:32:39","modified_gmt":"2025-08-31T12:32:39","slug":"cve-2025-7794-remote-stack-based-buffer-overflow-vulnerability-in-tenda-fh451","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7794-remote-stack-based-buffer-overflow-vulnerability-in-tenda-fh451\/","title":{"rendered":"<strong>CVE-2025-7794: Remote Stack-based Buffer Overflow Vulnerability in Tenda FH451<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in Tenda FH451 1.0.0.9, a widely-used networking device. This vulnerability, designated as CVE-2025-7794, lies within the fromNatStaticSetting function of the \/goform\/NatStaticSetting file. Exploitation of this flaw could lead to a stack-based buffer overflow, potentially enabling attackers to execute arbitrary code <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52809-php-remote-file-inclusion-vulnerability-in-national-weather-service-alerts\/\"  data-wpil-monitor-id=\"65959\">remotely or cause a denial of service<\/a>. This vulnerability is of significant concern due to the <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=\"72100\">potential for system<\/a> compromise or data leakage, making it essential for users of the affected product to apply the appropriate mitigations as soon as possible.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-7794<br \/>\nSeverity: Critical (8.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7419-critical-vulnerability-discovered-in-tenda-o3v2-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"70052\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-953592889\" 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-2025-7805-critical-vulnerability-in-tenda-fh451-1-0-0-9-leading-to-remote-buffer-overflow-attacks\/\"  data-wpil-monitor-id=\"67637\">Tenda FH451<\/a> | 1.0.0.9<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit targets a flaw in the fromNatStaticSetting function of the file \/goform\/NatStaticSetting within <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7796-critical-stack-based-buffer-overflow-in-tenda-fh451-1-0-0-9\/\"  data-wpil-monitor-id=\"68287\">Tenda FH451<\/a>. Specifically, the vulnerability arises when handling the &#8216;page&#8217; argument, which can be manipulated to cause a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7596-critical-remote-buffer-overflow-vulnerability-in-tenda-fh1205\/\"  data-wpil-monitor-id=\"66404\">buffer overflow<\/a>. This overflow, in turn, can be leveraged 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=\"67638\">arbitrary code<\/a> or cause a denial of service. Given that the attack can be launched <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26396-local-privilege-escalation-vulnerability-in-solarwinds-dameware-mini-remote-control\/\"  data-wpil-monitor-id=\"70051\">remotely and requires no user interaction or privileges<\/a>, it poses a significant risk to unpatched systems.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1818423320\" 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 the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7837-critical-vulnerability-in-totolink-t6-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"72101\">vulnerability could potentially<\/a> be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/NatStaticSetting HTTP\/1.1\nHost: vulnerable-device-ip\nContent-Type: application\/x-www-form-urlencoded\npage=%s<\/code><\/pre>\n<p>In this example, an attacker would substitute &#8216;%s&#8217; with a large string of characters designed to <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=\"66945\">overflow the buffer<\/a>, potentially leading to arbitrary code execution.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users of affected versions of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7747-critical-buffer-overflow-vulnerability-in-tenda-fh451-1-0-0-9\/\"  data-wpil-monitor-id=\"68294\">Tenda FH451<\/a> are advised to apply the vendor-supplied patch immediately. In the absence of a patch, temporary mitigation can be achieved by employing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76457\">block attempts to exploit this vulnerability<\/a>. However, this is only a temporary solution, and users are strongly encouraged to apply the vendor patch as soon as it becomes available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in Tenda FH451 1.0.0.9, a widely-used networking device. This vulnerability, designated as CVE-2025-7794, lies within the fromNatStaticSetting function of the \/goform\/NatStaticSetting file. Exploitation of this flaw could lead to a stack-based buffer overflow, potentially enabling attackers to execute arbitrary code remotely or cause a denial of service. This [&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-59621","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\/59621","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=59621"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59621\/revisions"}],"predecessor-version":[{"id":68897,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59621\/revisions\/68897"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59621"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59621"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59621"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59621"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59621"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59621"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}