{"id":55159,"date":"2025-06-26T01:56:42","date_gmt":"2025-06-26T01:56:42","guid":{"rendered":""},"modified":"2025-08-30T04:38:33","modified_gmt":"2025-08-30T10:38:33","slug":"cve-2025-6292-critical-vulnerability-in-d-link-dir-825-2-03-leads-to-stack-based-buffer-overflow","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6292-critical-vulnerability-in-d-link-dir-825-2-03-leads-to-stack-based-buffer-overflow\/","title":{"rendered":"<strong>CVE-2025-6292: Critical Vulnerability in D-Link DIR-825 2.03 Leads to Stack-Based Buffer Overflow<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>Recently, a critical vulnerability was discovered in D-Link DIR-825 2.03, a widely used version of the D-Link router. This vulnerability has been classified as a stack-based buffer overflow, which can lead to severe consequences including potential system compromise or data leakage. Given that the affected products are no longer supported by the manufacturer, it&#8217;s urgent for end-users, administrators, and organizations reliant on these products to take immediate action to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39486-rankie-sql-injection-vulnerability-and-mitigation-measures\/\"  data-wpil-monitor-id=\"62598\">mitigate the risks associated with this vulnerability<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6292<br \/>\nSeverity: Critical (CVSS: 8.8)<br \/>\nAttack Vector: Remote<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=\"62599\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-4252457891\" 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-2025-6291-d-link-dir-825-critical-stack-based-buffer-overflow-vulnerability\/\"  data-wpil-monitor-id=\"63011\">D-Link | DIR-825<\/a> 2.03<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-13974-high-risk-business-logic-vulnerability-in-up2date-component-of-sophos-firewall\/\"  data-wpil-monitor-id=\"73912\">vulnerability exists within the function sub_4091AC of the component<\/a> HTTP POST Request Handler. An attacker can exploit this <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=\"62171\">vulnerability by sending a specially crafted HTTP POST request<\/a> that includes an oversized payload. The server&#8217;s buffer, unable to handle the excessive data, overflows, potentially allowing an attacker to execute arbitrary code or cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49181-unauthorized-api-endpoint-access-leading-to-denial-of-service-and-data-leakage\/\"  data-wpil-monitor-id=\"61676\">denial of service<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-804768176\" 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>Here is a conceptual example of how an attacker could <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=\"62597\">potentially exploit this vulnerability<\/a>. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49526-out-of-bounds-write-vulnerability-in-illustrator-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"75138\">code is presented for illustrative<\/a> purposes only:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;oversized_payload&quot;: &quot;A&quot;*10000 }<\/code><\/pre>\n<p>In this example, &#8216;A&#8217;*10000 represents an oversized payload that exceeds the buffer&#8217;s capacity, leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6112-critical-buffer-overflow-vulnerability-in-tenda-fh1205\/\"  data-wpil-monitor-id=\"61546\">buffer overflow<\/a>.<\/p>\n<p><strong>Recommended Mitigation<\/strong><\/p>\n<p>Given that this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4855-unauthorized-access-vulnerability-in-support-board-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"70974\">vulnerability affects products no longer supported<\/a> by the vendor, applying a vendor patch is not possible. In such circumstances, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can be configured to detect and block malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6162-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-http-post-request-handler\/\"  data-wpil-monitor-id=\"62266\">HTTP POST requests sent to exploit this vulnerability<\/a>. For a permanent solution, consider upgrading to a supported version of the product or switching to a different product entirely.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Recently, a critical vulnerability was discovered in D-Link DIR-825 2.03, a widely used version of the D-Link router. This vulnerability has been classified as a stack-based buffer overflow, which can lead to severe consequences including potential system compromise or data leakage. Given that the affected products are no longer supported by the manufacturer, it&#8217;s [&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":[86,87],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-55159","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-dos"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55159","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=55159"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55159\/revisions"}],"predecessor-version":[{"id":67747,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55159\/revisions\/67747"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=55159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=55159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=55159"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=55159"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=55159"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=55159"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=55159"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=55159"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=55159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}