{"id":51949,"date":"2025-06-14T16:57:25","date_gmt":"2025-06-14T16:57:25","guid":{"rendered":""},"modified":"2025-06-20T17:17:47","modified_gmt":"2025-06-20T23:17:47","slug":"cve-2025-5852-critical-buffer-overflow-vulnerability-in-tenda-ac6-15-03-05-16","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5852-critical-buffer-overflow-vulnerability-in-tenda-ac6-15-03-05-16\/","title":{"rendered":"<strong>CVE-2025-5852: Critical Buffer Overflow Vulnerability in Tenda AC6 15.03.05.16<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in the formSetPPTPUserList function of the file \/goform\/setPptpUserList in Tenda AC6 15.03.05.16. This vulnerability has been given the identification CVE-2025-5852 and poses a significant threat to user data and system integrity. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45567-severe-memory-corruption-vulnerability-during-jpeg-encoding\/\"  data-wpil-monitor-id=\"58244\">vulnerability matters due to the severity<\/a> of its potential impact; it can be exploited remotely and could potentially lead to system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-5852<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-2024-45576-memory-corruption-vulnerability-in-ope-module-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"58249\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2781471390\" 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-2025-5853-critical-vulnerability-in-tenda-ac6-router-may-lead-to-system-compromise\/\"  data-wpil-monitor-id=\"60024\">Tenda AC6<\/a> | 15.03.05.16<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <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=\"58526\">vulnerability exploits a buffer overflow<\/a> condition in the formSetPPTPUserList function of the file \/goform\/setPptpUserList. The manipulation of the argument list can cause the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-49835-memory-corruption-vulnerability-leading-to-potential-data-leakage-or-system-compromise\/\"  data-wpil-monitor-id=\"58395\">system to write data<\/a> beyond the intended boundary of a fixed-length buffer. This can corrupt data, crash the system, or lead to the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32106-unauthenticated-remote-code-execution-in-audiocodes-mediapack-mp-11x\/\"  data-wpil-monitor-id=\"58580\">execution of malicious code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1734655654\" 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 that demonstrates how the vulnerability might be exploited. This example should not be used for malicious purposes.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/setPptpUserList HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;user_list&quot;: &quot;A&quot;*10000 }<\/code><\/pre>\n<p>In the example above, the user_list argument is filled with a large number of &#8216;A&#8217; characters, which could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5503-critical-remote-buffer-overflow-vulnerability-in-totolink-x15\/\"  data-wpil-monitor-id=\"58652\">overflow the buffer<\/a> and lead to unexpected behavior, such as the execution of malicious code.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>To mitigate this vulnerability, users are recommended to apply the vendor patch as soon as it becomes available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Regularly updating and patching <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45566-critical-memory-corruption-vulnerability-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"58261\">systems can help prevent exploitation of such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in the formSetPPTPUserList function of the file \/goform\/setPptpUserList in Tenda AC6 15.03.05.16. This vulnerability has been given the identification CVE-2025-5852 and poses a significant threat to user data and system integrity. This vulnerability matters due to the severity of its potential impact; it can be exploited remotely and [&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-51949","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\/51949","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=51949"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51949\/revisions"}],"predecessor-version":[{"id":53729,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51949\/revisions\/53729"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51949"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51949"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51949"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51949"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51949"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51949"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}