{"id":37640,"date":"2025-05-13T05:28:05","date_gmt":"2025-05-13T05:28:05","guid":{"rendered":""},"modified":"2025-10-01T21:53:50","modified_gmt":"2025-10-02T03:53:50","slug":"cve-2025-4347-d-link-router-buffer-overflow-vulnerability-leading-to-potential-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-4347-d-link-router-buffer-overflow-vulnerability-leading-to-potential-system-compromise\/","title":{"rendered":"<strong>CVE-2025-4347: D-Link Router Buffer Overflow Vulnerability Leading to Potential System Compromise<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in D-Link DIR-600L routers up to version 2.07B01. This vulnerability, identified as CVE-2025-4347, has been rated as a high-severity threat with a CVSS score of 8.8. It affects the function formWlSiteSurvey and could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4050-heap-corruption-in-google-chrome-devtools-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"43050\">potentially lead to system<\/a> compromise or data leakage. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3078-critical-passback-vulnerability-in-production-and-office-multifunction-printers\/\"  data-wpil-monitor-id=\"55192\">vulnerability is particularly concerning as it affects products<\/a> that are no longer supported by the maintainer, leaving these devices exposed without a forthcoming patch from the vendor.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-4347<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-2023-49126-critical-vulnerability-in-solid-edge-se2023-allows-for-potential-system-compromise\/\"  data-wpil-monitor-id=\"43402\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1482994998\" 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-2025-4349-critical-command-injection-vulnerability-in-d-link-dir-600l-routers\/\"  data-wpil-monitor-id=\"43872\">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-2025-4342-critical-buffer-overflow-vulnerability-in-d-link-dir-600l\/\"  data-wpil-monitor-id=\"43482\">vulnerability resides in the formWlSiteSurvey function of D-Link<\/a> DIR-600L routers. By manipulating the &#8216;host&#8217; argument in this function, an attacker can cause a <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=\"42322\">buffer overflow<\/a> condition. <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=\"42405\">Buffer overflows<\/a> are dangerous as they can potentially allow an attacker to execute arbitrary code on the target system or cause the system to crash. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47154-exploitation-of-use-after-free-vulnerability-in-libjs-in-ladybird\/\"  data-wpil-monitor-id=\"42327\">vulnerability can be exploited<\/a> remotely, which increases the risk associated with this flaw.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3947015151\" 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>This is a hypothetical example of how an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5353-local-authenticated-attacker-exploit-in-ivanti-workspace-control\/\"  data-wpil-monitor-id=\"68557\">attacker might exploit<\/a> this vulnerability. In this scenario, the attacker sends a maliciously crafted HTTP request that causes a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4142-critical-buffer-overflow-vulnerability-in-netgear-ex6200-1-0-3-94\/\"  data-wpil-monitor-id=\"42426\">buffer overflow<\/a> condition.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/formWlSiteSurvey HTTP\/1.1\nHost: vulnerable-router\nContent-Type: application\/json\n{ &quot;host&quot;: &quot;AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...&quot; }<\/code><\/pre>\n<p>In this example, the &#8220;A&#8221; string is longer than the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46713-buffer-overflow-vulnerability-in-sandboxie-s-memory-allocation-subsystem\/\"  data-wpil-monitor-id=\"68556\">buffer allocated<\/a> for the &#8216;host&#8217; parameter. The excess data overflows into adjacent memory, <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=\"42468\">potentially leading to code<\/a> execution or a system crash.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Given the high <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31637-high-risk-sql-injection-vulnerability-in-lambertgroup-shout\/\"  data-wpil-monitor-id=\"51864\">risk associated with this vulnerability<\/a>, it is advised to apply a patch from the vendor, if available. If a patch is not available <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36899-unchecked-privilege-escalation-vulnerability-due-to-debugging-code-in-production-build\/\"  data-wpil-monitor-id=\"87090\">due to the end of product<\/a> support, it may be necessary to consider other mitigation strategies such as using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block exploit attempts. However, these are only temporary measures and it is highly recommended to replace unsupported devices with ones that receive regular security updates from the vendor.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in D-Link DIR-600L routers up to version 2.07B01. This vulnerability, identified as CVE-2025-4347, has been rated as a high-severity threat with a CVSS score of 8.8. It affects the function formWlSiteSurvey and could potentially lead to system compromise or data leakage. The vulnerability is particularly concerning as it [&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-37640","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\/37640","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=37640"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37640\/revisions"}],"predecessor-version":[{"id":79935,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/37640\/revisions\/79935"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=37640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=37640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=37640"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=37640"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=37640"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=37640"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=37640"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=37640"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=37640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}