{"id":51105,"date":"2025-06-11T10:24:15","date_gmt":"2025-06-11T10:24:15","guid":{"rendered":""},"modified":"2025-08-07T11:57:17","modified_gmt":"2025-08-07T17:57:17","slug":"cve-2025-5630-critical-buffer-overflow-vulnerability-in-d-link-dir-816-1-10cnb05","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5630-critical-buffer-overflow-vulnerability-in-d-link-dir-816-1-10cnb05\/","title":{"rendered":"<strong>CVE-2025-5630: Critical Buffer Overflow Vulnerability in D-Link DIR-816 1.10CNB05<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>Cybersecurity is a constantly evolving field, with new vulnerabilities appearing that challenge our defense strategies. This blog post will focus on CVE-2025-5630, a critical vulnerability that has been detected in D-Link DIR-816 1.10CNB05. This issue affects an unknown code component within the file \/goform\/form2lansetup.cgi, which can lead to a dangerous stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29625-critical-buffer-overflow-vulnerability-in-astrolog-v7-70\/\"  data-wpil-monitor-id=\"57631\">buffer overflow<\/a> when the &#8216;ip&#8217; argument is manipulated.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37093-severe-authentication-bypass-vulnerability-in-hpe-storeonce-software\/\"  data-wpil-monitor-id=\"57950\">severity of this vulnerability<\/a> cannot be overstated, given its potential for remote exploitation. It poses a significant threat to outdated products no longer supported by their vendors, thereby raising the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47668-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"57632\">potential for data leakage or a complete system compromise<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-5630<br \/>\nSeverity: Critical, CVSS Score 9.8<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22041-linux-kernel-vulnerability-in-ksmbd-sessions-deregister-may-lead-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"57951\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2087191054\" 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-2025-5623-a-critical-stack-based-buffer-overflow-vulnerability-in-d-link-dir-816-1-10cnb05\/\"  data-wpil-monitor-id=\"59123\">D-Link DIR-816<\/a> | 1.10CNB05<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53964-critical-file-manipulation-vulnerability-in-goldendict\/\"  data-wpil-monitor-id=\"67167\">manipulating the &#8216;ip&#8217; argument in the \/goform\/form2lansetup.cgi file<\/a>. This manipulation <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22884-buffer-overflow-vulnerability-in-delta-electronics-ispsoft\/\"  data-wpil-monitor-id=\"57756\">overflows the stack buffer<\/a> causing unexpected behavior in the system. The overflow can overwrite other portions of memory, and the attacker could use this to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32106-unauthenticated-remote-code-execution-in-audiocodes-mediapack-mp-11x\/\"  data-wpil-monitor-id=\"58587\">execute arbitrary code<\/a>. This allows potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48881-unauthorized-access-and-modification-vulnerability-in-valtimo-business-process-automation\/\"  data-wpil-monitor-id=\"57412\">unauthorized access<\/a> to sensitive information, or even full control over the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-552879689\" 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>Below is a conceptual example of how the vulnerability might be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/form2lansetup.cgi HTTP\/1.1\nHost: vulnerable_device_ip\nContent-Type: application\/x-www-form-urlencoded\nip=%s  # This is where the malicious input would be inserted<\/code><\/pre>\n<p>In the above example, the attacker would replace `%s` with a carefully crafted string designed to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22882-critical-stack-based-buffer-overflow-vulnerability-in-delta-electronics-ispsoft\/\"  data-wpil-monitor-id=\"57774\">overflow the stack buffer<\/a>.<\/p>\n<p><strong>Mitigation and Recommendations<\/strong><\/p>\n<p>For mitigation, it is recommended to apply vendor patches as soon as they become available. Since the affected products are no longer supported by the vendor, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method.<br \/>\nHowever, the most effective course of action is to replace outdated and unsupported devices with newer ones that receive regular security updates from the manufacturer. Practicing good cybersecurity hygiene, such as regularly updating and patching systems, can help prevent exploitation of these <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5959-high-severity-type-confusion-vulnerability-in-google-chrome\/\"  data-wpil-monitor-id=\"60949\">types of vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Cybersecurity is a constantly evolving field, with new vulnerabilities appearing that challenge our defense strategies. This blog post will focus on CVE-2025-5630, a critical vulnerability that has been detected in D-Link DIR-816 1.10CNB05. This issue affects an unknown code component within the file \/goform\/form2lansetup.cgi, which can lead to a dangerous stack-based buffer overflow when [&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-51105","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\/51105","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=51105"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51105\/revisions"}],"predecessor-version":[{"id":61004,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51105\/revisions\/61004"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51105"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51105"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51105"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51105"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51105"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51105"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}