{"id":53645,"date":"2025-06-19T14:44:16","date_gmt":"2025-06-19T14:44:16","guid":{"rendered":""},"modified":"2025-09-07T05:20:11","modified_gmt":"2025-09-07T11:20:11","slug":"cve-2025-46060-critical-buffer-overflow-vulnerability-in-totolink-n600r","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-46060-critical-buffer-overflow-vulnerability-in-totolink-n600r\/","title":{"rendered":"<strong>CVE-2025-46060: Critical Buffer Overflow Vulnerability in TOTOLINK N600R<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In today&#8217;s ever-evolving cybersecurity landscape, a new critical vulnerability has been identified in TOTOLINK N600R v4.3.0cu.7866_B2022506. Labeled as CVE-2025-46060, this vulnerability poses a significant risk to the integrity, confidentiality, and availability of the systems that use the affected device. It is particularly alarming as it allows a remote attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2011-10007-arbitrary-code-execution-vulnerability-in-file-find-rule-for-perl\/\"  data-wpil-monitor-id=\"59994\">execute arbitrary code<\/a>, potentially leading to system compromise or data leakage. Organizations that use the affected TOTOLINK N600R firmware <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47136-integer-underflow-vulnerability-in-indesign-desktop-versions-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"79765\">version should prioritize mitigation measures to prevent potential<\/a> exploits.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-46060<br \/>\nSeverity: Critical (9.8 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5866-critical-vulnerability-in-rt-thread-5-1-0-potentially-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"63850\">System compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2585999911\" 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>TOTOLINK N600R | v4.3.0cu.7866_B2022506<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5789-critical-buffer-overflow-vulnerability-in-totolink-x15\/\"  data-wpil-monitor-id=\"59968\">buffer overflow vulnerability in the UPLOAD_FILENAME component of the TOTOLINK<\/a> N600R firmware. A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5794-critical-buffer-overflow-vulnerability-in-tenda-ac5\/\"  data-wpil-monitor-id=\"59969\">buffer overflow<\/a> occurs when a program writes more data to a buffer than it&#8217;s capable of holding. In this case, an attacker sends an overly large filename to the UPLOAD_FILENAME component. The overflow of data can overwrite adjacent memory locations, causing the program to crash or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47163-unauthorized-code-execution-through-microsoft-sharepoint-deserialization-vulnerability\/\"  data-wpil-monitor-id=\"60994\">execute arbitrary code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1409959827\" 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 is a conceptual example of how this vulnerability could be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/upload HTTP\/1.1\nHost: target.example.com\nContent-Type: multipart\/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW\n------WebKitFormBoundary7MA4YWxkTrZu0gW\nContent-Disposition: form-data; name=&quot;file&quot;; filename=&quot;a_long_filename_that_causes_buffer_overflow.txt&quot;\nContent-Type: text\/plain\nmalicious_payload\n------WebKitFormBoundary7MA4YWxkTrZu0gW--<\/code><\/pre>\n<p>In this example, the filename is excessively long, causing a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5629-critical-buffer-overflow-vulnerability-in-tenda-ac10\/\"  data-wpil-monitor-id=\"59970\">buffer overflow<\/a> in the UPLOAD_FILENAME component. The malicious payload could be any <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5491-acer-controlcenter-remote-code-execution-vulnerability-potential-system-compromise\/\"  data-wpil-monitor-id=\"61234\">code that the attacker wants the system to execute<\/a>.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>To <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39486-rankie-sql-injection-vulnerability-and-mitigation-measures\/\"  data-wpil-monitor-id=\"63851\">mitigate this vulnerability<\/a>, users of affected versions should immediately apply the patch provided by the vendor. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76409\">blocking or alerting on attempts to exploit this vulnerability<\/a>. Always remember that these are just temporary solutions and should not replace the permanent fix provided by the vendor.<\/p>\n<p><strong>Conclusion<\/strong><\/p>\n<p>In conclusion, the CVE-2025-46060 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5734-critical-buffer-overflow-vulnerability-in-totolink-x15\/\"  data-wpil-monitor-id=\"59971\">vulnerability is a critical<\/a> risk that requires immediate attention. By understanding the nature of the threat and taking swift and appropriate action, organizations can protect their <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5901-buffer-overflow-vulnerability-in-totolink-t10-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"60501\">systems from potential<\/a> compromise. With the ever-present danger of cyber threats, maintaining a robust security posture is not just an option, but a necessity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In today&#8217;s ever-evolving cybersecurity landscape, a new critical vulnerability has been identified in TOTOLINK N600R v4.3.0cu.7866_B2022506. Labeled as CVE-2025-46060, this vulnerability poses a significant risk to the integrity, confidentiality, and availability of the systems that use the affected device. It is particularly alarming as it allows a remote attacker to execute arbitrary code, potentially [&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-53645","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\/53645","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=53645"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53645\/revisions"}],"predecessor-version":[{"id":72201,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53645\/revisions\/72201"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=53645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=53645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=53645"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=53645"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=53645"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=53645"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=53645"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=53645"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=53645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}