{"id":37638,"date":"2025-05-13T03:27:23","date_gmt":"2025-05-13T03:27:23","guid":{"rendered":""},"modified":"2025-05-24T05:22:25","modified_gmt":"2025-05-24T05:22:25","slug":"cve-2025-4345-critical-buffer-overflow-vulnerability-in-d-link-dir-600l","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-4345-critical-buffer-overflow-vulnerability-in-d-link-dir-600l\/","title":{"rendered":"<strong>CVE-2025-4345: Critical Buffer Overflow Vulnerability in D-Link DIR-600L<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>This post delves into a severe vulnerability identified in the D-Link DIR-600L up to version 2.07B01. The vulnerability, marked as CVE-2025-4345, allows potential intruders to initiate a buffer overflow attack remotely and compromise the system. This vulnerability poses a significant risk to users of the affected <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4342-critical-buffer-overflow-vulnerability-in-d-link-dir-600l\/\"  data-wpil-monitor-id=\"43477\">D-Link<\/a> model, which, despite being no longer supported by the manufacturer, is still widely used in many homes and small businesses. If exploited, attackers could potentially gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45746-unauthorized-system-access-via-hardcoded-jwt-secret-in-zkt-zkbio-cvsecurity\/\"  data-wpil-monitor-id=\"48957\">unauthorized access<\/a>, control over the system, and even leak sensitive data.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-4345<br \/>\nSeverity: Critical (8.8 CVSS Severity Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-49126-critical-vulnerability-in-solid-edge-se2023-allows-for-potential-system-compromise\/\"  data-wpil-monitor-id=\"43435\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1302424221\" 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-2025-4349-critical-command-injection-vulnerability-in-d-link-dir-600l-routers\/\"  data-wpil-monitor-id=\"43866\">D-Link DIR-600L<\/a> | Up to 2.07B01<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4343-critical-buffer-overflow-vulnerability-in-d-link-dir-600l\/\"  data-wpil-monitor-id=\"43484\">vulnerability is located in the &#8216;formSetLog&#8217; function of the D-Link<\/a> DIR-600L firmware. Attackers can manipulate the &#8216;host&#8217; argument, which leads to an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4147-critical-remote-buffer-overflow-vulnerability-in-netgear-ex6200-1-0-3-94\/\"  data-wpil-monitor-id=\"42318\">overflow of the buffer<\/a>. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-36864-integer-overflow-vulnerability-in-gtkwave-3-3-115-with-potential-for-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"42472\">overflow can then be used to execute arbitrary code<\/a> on the system. The exploit can be triggered <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24522-unauthenticated-remote-access-to-node-red-server-in-kunbus-revolution-pi-os-bookworm\/\"  data-wpil-monitor-id=\"42786\">remotely without the need for authenticated access<\/a>, making it a particularly dangerous vulnerability.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4031099541\" 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>Please note this is purely a hypothetical example. <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47154-exploitation-of-use-after-free-vulnerability-in-libjs-in-ladybird\/\"  data-wpil-monitor-id=\"42329\">Exploiting vulnerabilities<\/a> is illegal and unethical.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/formSetLog HTTP\/1.1\nHost: vulnerable_router\nContent-Type: application\/x-www-form-urlencoded\nhost=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... [continue until overflow]<\/code><\/pre>\n<p>In this example, the &#8216;host&#8217; argument is filled with an excessive number of &#8216;A&#8217; characters, triggering a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4139-critical-buffer-overflow-vulnerability-in-netgear-ex6120-1-0-0-68\/\"  data-wpil-monitor-id=\"42401\">buffer overflow<\/a>. In a real-world exploit, the overflow might be used to inject and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37419-critical-arbitrary-code-execution-vulnerability-in-gtkwave-3-3-115\/\"  data-wpil-monitor-id=\"42678\">execute malicious code<\/a>.<\/p>\n<p><strong>Recommendations for Mitigation<\/strong><\/p>\n<p>Users of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4347-d-link-router-buffer-overflow-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"43568\">D-Link DIR-600L router<\/a> should immediately apply the vendor-provided patch to mitigate the risk. As a temporary measure, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide some protection. However, these are not long-term solutions and cannot fully prevent exploitation. It is also strongly recommended to replace unsupported devices with newer, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26847-unmasked-passwords-vulnerability-in-znuny-support-bundle-generation\/\"  data-wpil-monitor-id=\"45851\">supported models to avoid the risk of future vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview This post delves into a severe vulnerability identified in the D-Link DIR-600L up to version 2.07B01. The vulnerability, marked as CVE-2025-4345, allows potential intruders to initiate a buffer overflow attack remotely and compromise the system. This vulnerability poses a significant risk to users of the affected D-Link model, which, despite being no longer supported [&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-37638","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\/37638","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=37638"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37638\/revisions"}],"predecessor-version":[{"id":43634,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37638\/revisions\/43634"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=37638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=37638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=37638"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=37638"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=37638"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=37638"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=37638"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=37638"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=37638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}