{"id":55162,"date":"2025-06-26T04:58:03","date_gmt":"2025-06-26T04:58:03","guid":{"rendered":""},"modified":"2025-10-02T17:20:33","modified_gmt":"2025-10-02T23:20:33","slug":"cve-2025-6328-critical-remote-stack-based-buffer-overflow-vulnerability-in-d-link-dir-815-1-01","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6328-critical-remote-stack-based-buffer-overflow-vulnerability-in-d-link-dir-815-1-01\/","title":{"rendered":"<strong>CVE-2025-6328: Critical Remote Stack-based Buffer Overflow Vulnerability in D-Link DIR-815 1.01<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the ever-evolving landscape of cybersecurity, a critical vulnerability, CVE-2025-6328, has been discovered in the D-Link DIR-815 router version 1.01. This vulnerability has been identified as a stack-based buffer overflow, which can be exploited remotely, potentially leading to a system compromise or data leakage. Being a widely used router, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"61542\">vulnerability poses a significant threat to many users<\/a> and organizations that rely on the D-Link DIR-815 for their network connectivity.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6328<br \/>\nSeverity: Critical; CVSS Score 8.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32878-critical-vulnerability-in-coros-pace-3-devices-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63342\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3893129625\" 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>D-Link DIR-815 | 1.01<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This vulnerability stems from a flaw within the sub_403794 function of the hedwig.cgi file in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49137-critical-vulnerability-in-hax-cms-php-prior-to-version-11-0-0\/\"  data-wpil-monitor-id=\"61939\">D-Link DIR-815<\/a> version 1.01. By manipulating this function, an attacker can cause a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6112-critical-buffer-overflow-vulnerability-in-tenda-fh1205\/\"  data-wpil-monitor-id=\"61541\">buffer overflow<\/a>, which is a more dangerous class of buffer overflow attacks that can overwrite the control data of a function. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47167-microsoft-office-type-confusion-vulnerability-leading-to-unauthorized-local-code-execution\/\"  data-wpil-monitor-id=\"61769\">lead to the execution of arbitrary code<\/a>, potentially allowing an attacker to gain control over the system. A successful exploit would be initiated remotely, requiring no user interaction or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-33108-ibm-brms-elevation-of-privilege-vulnerability\/\"  data-wpil-monitor-id=\"62202\">elevated privileges<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3643486389\" 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>While an exact exploitation method has not been disclosed, a conceptual example of exploitation might involve sending a specially crafted HTTP <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=\"62168\">request to the vulnerable<\/a> router. This could look something like:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/hedwig.cgi HTTP\/1.1\nHost: &lt;target router IP&gt;\nContent-Type: application\/x-www-form-urlencoded\ndata=&lt;overly long string causing stack overflow&gt;<\/code><\/pre>\n<p>In this hypothetical exploit, an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3090-unauthenticated-remote-attack-leading-to-potential-data-leakage-and-system-compromise\/\"  data-wpil-monitor-id=\"87903\">attacker would send an overly long string as the &#8216;data<\/a>&#8216; parameter to the hedwig.cgi file. This could cause the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6113-critical-buffer-overflow-vulnerability-in-tenda-fh1203-2-0-1-6\/\"  data-wpil-monitor-id=\"61550\">buffer to overflow<\/a>, potentially allowing the attacker to execute arbitrary code or initiate other malicious activities.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users are strongly advised to apply the patch released by D-Link as soon as possible. In the meantime, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39486-rankie-sql-injection-vulnerability-and-mitigation-measures\/\"  data-wpil-monitor-id=\"63343\">mitigation method for this vulnerability<\/a>. These <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-36326-bypassing-amd-romarmor-protections-to-compromise-system-security\/\"  data-wpil-monitor-id=\"87902\">systems can provide some degree of protection<\/a> by detecting and blocking suspicious activities and traffic patterns. However, they are not foolproof and cannot completely eliminate the risk <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22236-minion-event-bus-authorization-bypass-vulnerability-posing-serious-security-threats\/\"  data-wpil-monitor-id=\"63341\">posed by this vulnerability<\/a>. Therefore, the application of the vendor patch should be prioritized to ensure maximum security.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the ever-evolving landscape of cybersecurity, a critical vulnerability, CVE-2025-6328, has been discovered in the D-Link DIR-815 router version 1.01. This vulnerability has been identified as a stack-based buffer overflow, which can be exploited remotely, potentially leading to a system compromise or data leakage. Being a widely used router, this vulnerability poses a significant [&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-55162","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\/55162","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=55162"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55162\/revisions"}],"predecessor-version":[{"id":80716,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55162\/revisions\/80716"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=55162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=55162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=55162"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=55162"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=55162"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=55162"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=55162"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=55162"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=55162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}