{"id":51860,"date":"2025-06-14T07:53:32","date_gmt":"2025-06-14T07:53:32","guid":{"rendered":""},"modified":"2025-08-30T04:39:09","modified_gmt":"2025-08-30T10:39:09","slug":"cve-2025-5798-critical-remote-stack-based-buffer-overflow-vulnerability-in-tenda-ac8","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5798-critical-remote-stack-based-buffer-overflow-vulnerability-in-tenda-ac8\/","title":{"rendered":"<strong>CVE-2025-5798: Critical Remote Stack-Based Buffer Overflow Vulnerability in Tenda AC8<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been identified in Tenda AC8 routers, specifically version 16.03.34.09. This vulnerability, referenced as CVE-2025-5798, allows remote attackers to exploit a stack-based buffer overflow in the SetSysTimeCfg function. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21480-memory-corruption-vulnerability-in-gpu-micronode-leads-to-unauthorized-command-execution\/\"  data-wpil-monitor-id=\"58493\">vulnerability can lead<\/a> to serious consequences such as a full system compromise or data leakage, making it a significant security concern for any individual or organization utilizing the Tenda AC8. Immediate action is required to mitigate the risk.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-5798<br \/>\nSeverity: Critical (CVSS 8.8)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1884-use-after-free-vulnerability-in-solidworks-edrawings-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"58157\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-4141585019\" 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-2025-5799-critical-buffer-overflow-vulnerability-in-tenda-ac8-16-03-34-09\/\"  data-wpil-monitor-id=\"60121\">Tenda AC8<\/a> | 16.03.34.09<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1883-out-of-bounds-write-vulnerability-in-solidworks-edrawings-obj-file-reading-procedure\/\"  data-wpil-monitor-id=\"58184\">vulnerability resides in the fromSetSysTime function of the file<\/a> \/goform\/SetSysTimeCfg. By manipulating the timeType argument, an attacker can cause a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-48877-high-severity-heap-buffer-overflow-vulnerability-in-xls2csv-utility\/\"  data-wpil-monitor-id=\"58199\">buffer overflow<\/a>. The overflow can be used to overwrite the program&#8217;s control flow, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45564-critical-memory-corruption-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"58131\">leading to remote code execution and potentially full system<\/a> compromise. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0072-local-non-privileged-user-exploit-in-arm-ltd-gpu-kernel-drivers\/\"  data-wpil-monitor-id=\"58217\">exploit can be triggered remotely without any user<\/a> interaction, making it a particularly dangerous vulnerability.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-174335087\" 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>The following conceptual example shows how the vulnerability might be exploited. The malicious payload would be crafted to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32105-buffer-overflow-vulnerability-in-sangoma-img2020-http-server-leading-to-remote-code-execution\/\"  data-wpil-monitor-id=\"58520\">overflow the buffer<\/a> and manipulate the program&#8217;s control flow.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/SetSysTimeCfg HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ntimeType=1&amp;timezone=&lt;malicious_payload&gt;<\/code><\/pre>\n<p>In this example, &#8220; would be a specifically crafted string that causes the buffer overflow and leads to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49113-critical-vulnerability-in-roundcube-webmail-allows-remote-code-execution\/\"  data-wpil-monitor-id=\"58331\">remote code<\/a> execution. This is just a hypothetical example to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49526-out-of-bounds-write-vulnerability-in-illustrator-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"75258\">illustrate the nature of the vulnerability<\/a>. Actual exploit code may be significantly more complex and could depend on the specific <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43192-critical-configuration-issue-in-macos-allowing-potential-system-compromise\/\"  data-wpil-monitor-id=\"75259\">system configuration<\/a>.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Users of Tenda AC8 version 16.03.34.09 are advised to apply the patch provided by the vendor as soon as possible. As a temporary mitigation, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"61525\">users may also employ a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block exploit attempts. However, these measures will not fix the underlying vulnerability and are only intended as a stopgap until the patch can be applied.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been identified in Tenda AC8 routers, specifically version 16.03.34.09. This vulnerability, referenced as CVE-2025-5798, allows remote attackers to exploit a stack-based buffer overflow in the SetSysTimeCfg function. This vulnerability can lead to serious consequences such as a full system compromise or data leakage, making it a significant security concern for [&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-51860","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\/51860","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=51860"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51860\/revisions"}],"predecessor-version":[{"id":67838,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51860\/revisions\/67838"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51860"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51860"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51860"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51860"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51860"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51860"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}