{"id":52963,"date":"2025-06-17T10:21:14","date_gmt":"2025-06-17T10:21:14","guid":{"rendered":""},"modified":"2025-09-10T17:20:15","modified_gmt":"2025-09-10T23:20:15","slug":"cve-2025-5910-critical-buffer-overflow-vulnerability-in-totolink-ex1200t","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5910-critical-buffer-overflow-vulnerability-in-totolink-ex1200t\/","title":{"rendered":"<strong>CVE-2025-5910: Critical Buffer Overflow Vulnerability in TOTOLINK EX1200T<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in the TOTOLINK EX1200T up to version 4.1.2cu.5232_B20210713. This vulnerability, identified as CVE-2025-5910, affects an unknown function of the file \/boafrm\/formWsc, which is a component of the HTTP POST Request Handler. What makes this vulnerability particularly concerning is the fact that it can be <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48860-exploiting-backup-archives-to-gain-remote-access-in-ctrlx-os\/\"  data-wpil-monitor-id=\"81464\">exploited remotely<\/a>, and the details of the exploit have already been made public. This means that potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5353-local-authenticated-attacker-exploit-in-ivanti-workspace-control\/\"  data-wpil-monitor-id=\"64385\">attackers are more likely to exploit<\/a> it, leading to a higher risk for users.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-5910<br \/>\nSeverity: Critical, CVSS score 8.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31222-potential-privilege-elevation-and-system-compromise-vulnerability\/\"  data-wpil-monitor-id=\"59677\">Potential system compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3122842315\" 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-2025-5793-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-4-1-2cu-5232-b20210713\/\"  data-wpil-monitor-id=\"59976\">TOTOLINK EX1200T<\/a> | Up to 4.1.2cu.5232_B20210713<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5607-critical-buffer-overflow-vulnerability-in-tenda-ac18\/\"  data-wpil-monitor-id=\"59361\">vulnerability stems from a buffer overflow<\/a> condition within the HTTP POST Request Handler&#8217;s handling of the \/boafrm\/formWsc file. If an attacker crafts a malicious HTTP POST request with an oversized payload, it could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5572-stack-based-buffer-overflow-vulnerability-in-d-link-dcs-932l-2-18-01\/\"  data-wpil-monitor-id=\"59366\">overflow the buffer<\/a> and cause undefined behavior in the system. This could allow the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1329-local-user-arbitrary-code-execution-vulnerability-in-ibm-cics-tx\/\"  data-wpil-monitor-id=\"59381\">execute arbitrary code<\/a>, potentially leading to system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-818016193\" 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 is a conceptual example of how an attacker might exploit this vulnerability. Please note that this is a simplified representation and actual attack may involve more complex payloads.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/boafrm\/formWsc HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nparam1=value1&amp;param2=value2&amp;...&amp;paramN=very_long_string_exceeding_buffer_capacity<\/code><\/pre>\n<p>In the above example, `paramN` is the parameter that the attacker uses to <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=\"59470\">overflow the buffer<\/a>, where `very_long_string_exceeding_buffer_capacity` is a string that exceeds the capacity of the buffer.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Users are advised to apply vendor provided patches as soon as possible. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, these measures cannot fully <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3319-an-authentication-bypass-vulnerability-in-ibm-spectrum-protect-server\/\"  data-wpil-monitor-id=\"64384\">protect against the vulnerability<\/a> and are only intended as a stop-gap until the patch can be applied.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in the TOTOLINK EX1200T up to version 4.1.2cu.5232_B20210713. This vulnerability, identified as CVE-2025-5910, affects an unknown function of the file \/boafrm\/formWsc, which is a component of the HTTP POST Request Handler. What makes this vulnerability particularly concerning is the fact that it can be exploited remotely, and 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],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-52963","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\/52963","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=52963"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/52963\/revisions"}],"predecessor-version":[{"id":73915,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/52963\/revisions\/73915"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=52963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=52963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=52963"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=52963"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=52963"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=52963"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=52963"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=52963"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=52963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}