{"id":51149,"date":"2025-06-11T13:25:14","date_gmt":"2025-06-11T13:25:14","guid":{"rendered":""},"modified":"2025-06-17T23:18:59","modified_gmt":"2025-06-18T05:18:59","slug":"cve-2025-5619-critical-remote-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5619-critical-remote-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1\/","title":{"rendered":"<strong>CVE-2025-5619: Critical Remote Buffer Overflow Vulnerability in Tenda CH22 1.0.0.1<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in Tenda CH22 1.0.0.1, a popular networking device. This vulnerability, identified as CVE-2025-5619, affects the &#8216;formaddUserName&#8217; function of the &#8216;\/goform\/addUserName&#8217; file within the system. The function&#8217;s argument manipulation, specifically the &#8216;Password&#8217;, can lead to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29625-critical-buffer-overflow-vulnerability-in-astrolog-v7-70\/\"  data-wpil-monitor-id=\"57627\">buffer overflow<\/a> situation. As with many other <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3394-critical-resource-vulnerability-in-abb-automation-builder\/\"  data-wpil-monitor-id=\"57498\">critical vulnerabilities<\/a>, this issue holds a high risk for potential system compromise or data leakage. Cybersecurity analysts and IT professionals should be aware and vigilant, given that the exploit has already been disclosed to the public and can be initiated remotely.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-5619<br \/>\nSeverity: Critical (8.8 CVSS Score)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47668-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"57628\">Potential system compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2474933305\" 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-2025-5685-critical-stack-based-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1\/\"  data-wpil-monitor-id=\"59783\">Tenda | CH22<\/a> 1.0.0.1<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31189-file-quarantine-bypass-vulnerability-in-macos\/\"  data-wpil-monitor-id=\"57812\">vulnerability lies within the &#8216;formaddUserName&#8217; function in the &#8216;\/goform\/addUserName&#8217; file<\/a>. The exploit is triggered when the &#8216;Password&#8217; argument is manipulated, which <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5408-critical-vulnerability-in-wavlink-devices-leads-to-buffer-overflow\/\"  data-wpil-monitor-id=\"57695\">leads to a stack-based buffer<\/a> overflow. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22882-critical-stack-based-buffer-overflow-vulnerability-in-delta-electronics-ispsoft\/\"  data-wpil-monitor-id=\"57776\">overflow can potentially overwrite critical<\/a> program data, system control data, or even the return address. 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=\"58224\">exploit can be initiated remotely without any user<\/a> interaction. Successful exploitation may <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22040-race-condition-vulnerability-in-linux-kernel-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"58054\">result in system<\/a> compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2229601955\" 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>To illustrate a potential exploit, consider the following example of a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5671-critical-buffer-overflow-vulnerability-in-totolink-n302r-plus-http-post-request-handler\/\"  data-wpil-monitor-id=\"59504\">HTTP request<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/addUserName HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nusername=admin&amp;password=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n<p>In this example, the password field is filled with an excessively long string, causing a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22884-buffer-overflow-vulnerability-in-delta-electronics-ispsoft\/\"  data-wpil-monitor-id=\"57754\">buffer overflow<\/a>. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45565-memory-corruption-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"58053\">potentially overwrite critical data and compromise the system<\/a>.<br \/>\nPlease note that this is a conceptual example and the actual exploit may vary. This information is provided for educational purposes, to understand the nature of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47933-arbitrary-actions-and-cross-site-scripting-vulnerability-in-argo-cd\/\"  data-wpil-monitor-id=\"58452\">vulnerability and to encourage swift mitigation actions<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in Tenda CH22 1.0.0.1, a popular networking device. This vulnerability, identified as CVE-2025-5619, affects the &#8216;formaddUserName&#8217; function of the &#8216;\/goform\/addUserName&#8217; file within the system. The function&#8217;s argument manipulation, specifically the &#8216;Password&#8217;, can lead to a stack-based buffer overflow situation. As with many other critical vulnerabilities, this issue holds [&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-51149","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\/51149","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=51149"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51149\/revisions"}],"predecessor-version":[{"id":53461,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51149\/revisions\/53461"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51149"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51149"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51149"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51149"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51149"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51149"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}