{"id":55559,"date":"2025-06-27T19:16:23","date_gmt":"2025-06-27T19:16:23","guid":{"rendered":""},"modified":"2025-07-07T05:27:20","modified_gmt":"2025-07-07T11:27:20","slug":"cve-2025-6371-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6371-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01\/","title":{"rendered":"<strong>CVE-2025-6371: Critical Buffer Overflow Vulnerability in D-Link DIR-619L 2.06B01<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is continuously changing, with new threats and vulnerabilities emerging almost daily. One of the most critical vulnerabilities discovered recently is CVE-2025-6371, which affects the D-Link DIR-619L 2.06B01. This vulnerability has been classified as <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48125-high-risk-php-remote-file-inclusion-vulnerability-in-wp-event-manager\/\"  data-wpil-monitor-id=\"61904\">critical<\/a> due to its potential for remote exploitation and the severity of the damage it can cause, including system compromise or data leakage. It&#8217;s particularly concerning as the function it affects is part of an unsupported product, hence putting <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5868-critical-vulnerability-in-rt-thread-leading-to-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"63877\">systems and data<\/a> at a higher risk.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6371<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-2025-49415-path-traversal-vulnerability-in-fw-gallery-with-potential-for-system-compromise\/\"  data-wpil-monitor-id=\"62594\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-897966428\" 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=\"63375\">D-Link DIR-619L | 2.06B01<\/a><\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39475-path-traversal-vulnerability-leading-to-php-local-file-inclusion-in-frenify-arlo\/\"  data-wpil-monitor-id=\"62037\">vulnerability resides in the function formSetEnableWizard of the file<\/a> \/goform\/formSetEnableWizard in the D-Link DIR-619L 2.06B01. The issue arises from manipulation of the argument curTime leading to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6129-critical-buffer-overflow-vulnerability-in-totolink-ex1200t\/\"  data-wpil-monitor-id=\"62005\">buffer overflow<\/a>. This kind of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6147-critical-buffer-overflow-vulnerability-in-totolink-a702r-router\/\"  data-wpil-monitor-id=\"62012\">overflow occurs when more data is loaded into a buffer<\/a> than it can handle, causing excess data to overflow into adjacent memory spaces. Attackers can exploit this overflow to inject and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-33112-local-arbitrary-code-execution-vulnerability-in-ibm-aix-and-vios-perl\/\"  data-wpil-monitor-id=\"61993\">execute malicious code<\/a> remotely.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4022753929\" 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 conceptual <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49847-buffer-overflow-vulnerability-in-llama-cpp-leading-to-potential-code-execution\/\"  data-wpil-monitor-id=\"62593\">code represents how an attacker might exploit this vulnerability<\/a>. This is a simple HTTP POST request that sends a malicious payload to the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49275-php-remote-file-inclusion-vulnerability-in-unfoldwp-blogbyte\/\"  data-wpil-monitor-id=\"62048\">vulnerable function in the formSetEnableWizard file<\/a>.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/formSetEnableWizard HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ncurTime=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n<p>In this example, the &#8216;curTime&#8217; parameter is filled with an excessive amount of &#8216;A&#8217; characters, demonstrating a potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6146-critical-buffer-overflow-vulnerability-in-totolink-x15\/\"  data-wpil-monitor-id=\"62015\">buffer overflow<\/a> attack. The exact nature of the malicious payload would depend on the specific goals of the attacker.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25264-critical-vulnerability-allowing-unauthenticated-remote-access-due-to-overly-permissive-cors-policy\/\"  data-wpil-monitor-id=\"61915\">Due to the nature and severity of this vulnerability<\/a>, it is strongly recommended to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems can be <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6513-brain2-database-configuration-file-access-vulnerability-in-standard-windows-users\/\"  data-wpil-monitor-id=\"64525\">configured to detect and block attempts to exploit this vulnerability<\/a>. However, it is crucial to remember that these are only temporary solutions and can&#8217;t replace the importance of applying the vendor\u2019s patch or switching to supported products.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is continuously changing, with new threats and vulnerabilities emerging almost daily. One of the most critical vulnerabilities discovered recently is CVE-2025-6371, which affects the D-Link DIR-619L 2.06B01. This vulnerability has been classified as critical due to its potential for remote exploitation and the severity of the damage it can cause, including [&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-55559","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\/55559","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=55559"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55559\/revisions"}],"predecessor-version":[{"id":58026,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55559\/revisions\/58026"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=55559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=55559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=55559"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=55559"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=55559"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=55559"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=55559"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=55559"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=55559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}