{"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":"CVE-2025-6328: Critical Remote Stack-based Buffer Overflow Vulnerability in D-Link DIR-815 1.01<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

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 threat to many users<\/a> and organizations that rely on the D-Link DIR-815 for their network connectivity.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-6328
\nSeverity: Critical; CVSS Score 8.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

D-Link DIR-815 | 1.01<\/p>\n

How the Exploit Works<\/strong><\/p>\n

This vulnerability stems from a flaw within the sub_403794 function of the hedwig.cgi file in D-Link DIR-815<\/a> version 1.01. By manipulating this function, an attacker can cause a stack-based buffer overflow<\/a>, which is a more dangerous class of buffer overflow attacks that can overwrite the control data of a function. This could 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 elevated privileges<\/a>.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

While an exact exploitation method has not been disclosed, a conceptual example of exploitation might involve sending a specially crafted HTTP request to the vulnerable<\/a> router. This could look something like:<\/p>\n

POST \/hedwig.cgi HTTP\/1.1\nHost: \nContent-Type: application\/x-www-form-urlencoded\ndata=<\/code><\/pre>\n
In this hypothetical exploit, an attacker would send an overly long string as the ‘data<\/a>‘ parameter to the hedwig.cgi file. This could cause the buffer to overflow<\/a>, potentially allowing the attacker to execute arbitrary code or initiate other malicious activities.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
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 mitigation method for this vulnerability<\/a>. These 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 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":"
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 […]<\/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,"_monsterinsights_skip_tracking":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":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t