{"id":57290,"date":"2025-07-05T04:29:32","date_gmt":"2025-07-05T04:29:32","guid":{"rendered":""},"modified":"2025-10-14T23:20:18","modified_gmt":"2025-10-15T05:20:18","slug":"cve-2025-6882-critical-buffer-overflow-vulnerability-in-d-link-dir-513-1-0","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6882-critical-buffer-overflow-vulnerability-in-d-link-dir-513-1-0\/","title":{"rendered":"<strong>CVE-2025-6882: Critical Buffer Overflow Vulnerability in D-Link DIR-513 1.0<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A vulnerability, identified as CVE-2025-6882, has been found in D-Link&#8217;s DIR-513 1.0. This issue poses a serious threat due to its critical classification and the fact it can be exploited remotely. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49258-critical-php-local-file-inclusion-vulnerability-in-themebay-maia\/\"  data-wpil-monitor-id=\"63791\">vulnerability affects an unknown part of the file<\/a> \/goform\/formSetWanPPTP and can lead to a buffer overflow, potentially compromising the system and leading to data leakage. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-58462-sql-injection-vulnerability-in-opexus-foiaxpress-public-access-link\/\"  data-wpil-monitor-id=\"89925\">vulnerability is especially alarming because the exploit has been publicly<\/a> disclosed and affects products that are no longer supported by the manufacturer.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6882<br \/>\nSeverity: Critical, CVSS score of 8.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5866-critical-vulnerability-in-rt-thread-5-1-0-potentially-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"63813\">Potential system compromise and data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1024370818\" 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-2025-8168-critical-buffer-overflow-vulnerability-in-d-link-dir-513-1-10\/\"  data-wpil-monitor-id=\"67065\">D-Link DIR-513<\/a> | 1.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49261-high-impact-remote-file-inclusion-vulnerability-in-themebay-s-diza\/\"  data-wpil-monitor-id=\"63773\">D-Link DIR-513<\/a> 1.0 is due to inadequate handling of the &#8216;curTime&#8217; argument in the \/goform\/formSetWanPPTP file. An attacker can manipulate this argument to cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6393-critical-buffer-overflow-vulnerability-in-totolink-products\/\"  data-wpil-monitor-id=\"63797\">buffer overflow<\/a>, an event where more data is put into a buffer than it can handle. This overflow can overwrite other data and potentially allow the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-47029-critical-remote-code-execution-vulnerability-in-ncr-terminal-handler\/\"  data-wpil-monitor-id=\"63741\">execution of arbitrary code<\/a> or cause a system crash.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-420934844\" 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 this vulnerability might be exploited. Note that the following is purely hypothetical and is not an actual exploit code:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/formSetWanPPTP HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ncurTime=100000000000000000000000000000000000000000000000000000000000000000000000000000...<\/code><\/pre>\n<p>In this example, an excessively long &#8216;curTime&#8217; value is sent to the vulnerable endpoint, potentially causing a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6565-critical-stack-based-buffer-overflow-vulnerability-in-netgear-wnce3001-1-0-0-50\/\"  data-wpil-monitor-id=\"64349\">buffer overflow<\/a>.<\/p>\n<p><strong>Remediation<\/strong><\/p>\n<p>As the affected products are no longer supported by the manufacturer, a vendor patch is not likely to be available. As a temporary mitigation, users can implement a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to identify and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76426\">block attempts to exploit this vulnerability<\/a>. Additionally, users are advised to replace unsupported products with updated, supported versions to ensure they benefit from the latest security updates.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A vulnerability, identified as CVE-2025-6882, has been found in D-Link&#8217;s DIR-513 1.0. This issue poses a serious threat due to its critical classification and the fact it can be exploited remotely. The vulnerability affects an unknown part of the file \/goform\/formSetWanPPTP and can lead to a buffer overflow, potentially compromising the system and leading [&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-57290","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\/57290","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=57290"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57290\/revisions"}],"predecessor-version":[{"id":82796,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57290\/revisions\/82796"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=57290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=57290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=57290"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=57290"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=57290"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=57290"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=57290"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=57290"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=57290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}