{"id":53824,"date":"2025-06-20T18:56:14","date_gmt":"2025-06-20T18:56:14","guid":{"rendered":""},"modified":"2025-09-16T07:08:57","modified_gmt":"2025-09-16T13:08:57","slug":"cve-2025-6114-critical-vulnerability-in-d-link-dir-619l-leading-to-stack-based-buffer-overflow","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6114-critical-vulnerability-in-d-link-dir-619l-leading-to-stack-based-buffer-overflow\/","title":{"rendered":"<strong>CVE-2025-6114: Critical Vulnerability in D-Link DIR-619L Leading to Stack-based Buffer Overflow<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is fraught with vulnerabilities, and D-Link DIR-619L version 2.06B01 is the latest product to fall prey to a significant one. Classified as critical with a Common Vulnerability Scoring System (CVSS) score of 8.8, this vulnerability specifically impacts the function form_portforwarding of the file \/goform\/form_portforwarding. The vulnerability arises from a manipulation of certain arguments, which results in a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5875-critical-buffer-overflow-vulnerability-in-tp-link-technologies-tl-ipc544ep-w4\/\"  data-wpil-monitor-id=\"60135\">buffer overflow<\/a>.<br \/>\nThis <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5855-critical-remote-buffer-overflow-vulnerability-in-tenda-ac6-15-03-05-16\/\"  data-wpil-monitor-id=\"60159\">vulnerability matters because it can be exploited remotely<\/a> and has been publicly disclosed, meaning malicious actors may have the tools required to launch an attack. Moreover, it affects products that are no longer supported by the maintainer, making it a potential ticking time bomb for unsuspecting users.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6114<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-2025-5901-buffer-overflow-vulnerability-in-totolink-t10-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"60511\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1483364823\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6115-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01\/\"  data-wpil-monitor-id=\"61662\">D-Link DIR-619L<\/a> | 2.06B01<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-34711-improper-uri-validation-vulnerability-in-geoserver\/\"  data-wpil-monitor-id=\"60409\">vulnerability is a result of insufficient input validation<\/a> in the form_portforwarding function of the file \/goform\/form_portforwarding. The manipulation of the argument ingress_name_%d\/sched_name_%d\/name_%d triggers a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5863-critical-stack-based-buffer-overflow-vulnerability-in-tenda-ac5\/\"  data-wpil-monitor-id=\"60154\">stack-based buffer overflow<\/a>. A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5854-critical-buffer-overflow-vulnerability-in-tenda-ac6-15-03-05-16\/\"  data-wpil-monitor-id=\"60156\">buffer overflow<\/a> occurs when more data is written to a buffer than it can handle, overriding adjacent memory locations. This can result in unpredictable behavior, including system crashes, incorrect data, or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47163-unauthorized-code-execution-through-microsoft-sharepoint-deserialization-vulnerability\/\"  data-wpil-monitor-id=\"60989\">code execution<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-742790313\" 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>Consider this conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6001-cross-site-request-forgery-vulnerability-in-virtuemart-product-image-upload-function\/\"  data-wpil-monitor-id=\"62195\">vulnerability might be exploited using an HTTP POST request<\/a>. An attacker would send a crafted request with a malicious payload designed to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5861-critical-buffer-overflow-vulnerability-in-tenda-ac7-15-03-06-44\/\"  data-wpil-monitor-id=\"60161\">overflow the buffer<\/a> and potentially execute arbitrary code.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/form_portforwarding HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ningress_name_1=sched_name_1=name_1=A*50000<\/code><\/pre>\n<p>In the example above, &#8216;A*50000&#8217; represents a string of 50,000 &#8216;A&#8217; characters, which could exceed the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5862-critical-buffer-overflow-vulnerability-in-tenda-ac7-15-03-06-44\/\"  data-wpil-monitor-id=\"60163\">buffer&#8217;s capacity and trigger the overflow<\/a>.<br \/>\nPlease note that this is a conceptual example and not actual exploit code. The actual exploit would depend on various factors, including the specific <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-43110-critical-unauthenticated-remote-system-configuration-vulnerability-in-voltronic-power-viewpower-powershield-netguard\/\"  data-wpil-monitor-id=\"83121\">configuration of the targeted system<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is fraught with vulnerabilities, and D-Link DIR-619L version 2.06B01 is the latest product to fall prey to a significant one. Classified as critical with a Common Vulnerability Scoring System (CVSS) score of 8.8, this vulnerability specifically impacts the function form_portforwarding of the file \/goform\/form_portforwarding. The vulnerability arises from a manipulation of [&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-53824","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\/53824","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=53824"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53824\/revisions"}],"predecessor-version":[{"id":75660,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53824\/revisions\/75660"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=53824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=53824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=53824"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=53824"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=53824"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=53824"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=53824"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=53824"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=53824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}