{"id":56514,"date":"2025-07-01T19:55:22","date_gmt":"2025-07-01T19:55:22","guid":{"rendered":""},"modified":"2025-09-10T17:20:13","modified_gmt":"2025-09-10T23:20:13","slug":"cve-2025-6616-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6616-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01\/","title":{"rendered":"<strong>CVE-2025-6616: Critical Buffer Overflow Vulnerability in D-Link DIR-619L 2.06B01<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in D-Link DIR-619L 2.06B01, identified as CVE-2025-6616. The vulnerability is found in the function formSetWAN_Wizard51 of the file \/goform\/formSetWAN_Wizard51. It is classified as critical due to its <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32454-out-of-bounds-read-in-teamcenter-visualization-leading-to-potential-code-execution\/\"  data-wpil-monitor-id=\"64120\">potential impact on the system which could lead<\/a> to full system compromise or data leakage. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48860-exploiting-backup-archives-to-gain-remote-access-in-ctrlx-os\/\"  data-wpil-monitor-id=\"81458\">exploit can be initiated remotely<\/a> and has been disclosed to the public, raising the threat level. Unfortunately, this vulnerability affects products that are no longer supported by the maintainer, which means that the users of these products are left to their own <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32878-critical-vulnerability-in-coros-pace-3-devices-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63197\">devices in securing their systems<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6616<br \/>\nSeverity: Critical (8.8\/10)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6510-critical-vulnerability-in-netgear-ex6100-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63650\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2983586708\" 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-2025-6370-critical-vulnerability-in-d-link-dir-619l-2-06b01-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63372\">D-Link DIR-619L | 2.06B01<\/a><\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-6616 exploit works by manipulating the &#8216;curTime&#8217; argument in a specific function of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6367-critical-vulnerability-in-d-link-dir-619l-2-06b01\/\"  data-wpil-monitor-id=\"63424\">D-Link DIR-619L&#8217;s<\/a> firmware. The function, known as &#8216;formSetWAN_Wizard51&#8217;, is <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6336-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-router\/\"  data-wpil-monitor-id=\"62922\">vulnerable to a stack-based buffer overflow<\/a>. By sending a specially crafted payload to this function, an attacker can cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6337-critical-buffer-overflow-vulnerability-in-totolink-routers\/\"  data-wpil-monitor-id=\"62926\">buffer overflow<\/a>, which could potentially allow them to execute arbitrary code on the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3005248007\" 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 the vulnerability might be exploited. The attacker crafts a malicious payload designed to cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6291-d-link-dir-825-critical-stack-based-buffer-overflow-vulnerability\/\"  data-wpil-monitor-id=\"63012\">buffer overflow<\/a> in the &#8216;curTime&#8217; argument:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/formSetWAN_Wizard51 HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ncurTime=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...+&amp;other_parameters=...<\/code><\/pre>\n<p>In this example, the &#8216;A&#8217;s represent the malicious payload that causes the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6302-critical-remote-stack-based-buffer-overflow-vulnerability-in-totolink-ex1200t\/\"  data-wpil-monitor-id=\"63019\">buffer overflow<\/a>. The &#8216;other_parameters&#8217; represent other necessary parameters that might be needed for a successful request, which are beyond the scope of this example.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply any available vendor patches. However, since the affected product is no longer supported by the vendor, third-party solutions such as Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) may be used as temporary mitigation measures. Regularly monitoring network traffic for any suspicious activities can also help in early detection of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80051\">potential exploits<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in D-Link DIR-619L 2.06B01, identified as CVE-2025-6616. The vulnerability is found in the function formSetWAN_Wizard51 of the file \/goform\/formSetWAN_Wizard51. It is classified as critical due to its potential impact on the system which could lead to full system compromise or data leakage. The exploit can be initiated remotely [&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-56514","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\/56514","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=56514"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56514\/revisions"}],"predecessor-version":[{"id":73910,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56514\/revisions\/73910"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=56514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=56514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=56514"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=56514"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=56514"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=56514"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=56514"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=56514"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=56514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}