{"id":59806,"date":"2025-08-01T18:28:16","date_gmt":"2025-08-01T18:28:16","guid":{"rendered":""},"modified":"2025-10-20T15:23:13","modified_gmt":"2025-10-20T21:23:13","slug":"cve-2025-8168-critical-buffer-overflow-vulnerability-in-d-link-dir-513-1-10","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-8168-critical-buffer-overflow-vulnerability-in-d-link-dir-513-1-10\/","title":{"rendered":"CVE-2025-8168: Critical Buffer Overflow Vulnerability in D-Link DIR-513 1.10<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape is a minefield of vulnerabilities, each with the potential to wreak havoc if not properly addressed. One such vulnerability, discovered in the D-Link DIR-513 1.10, poses a significant threat to out-of-support products. The vulnerability is cataloged under the identifier CVE-2025-8168 and has been given a critical<\/a> severity rating. This is due to its potential for remote exploitation, leading to system<\/a> compromise or data leakage. It is crucial for all users and system administrators of affected products to understand the risks associated with this vulnerability<\/a> and take immediate action to mitigate its potential impact.<\/p>\n

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

CVE ID: CVE-2025-8168
\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-513<\/a> | 1.10<\/p>\n

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

The vulnerability arises from a buffer overflow<\/a> condition within the websAspInit function of the \/goform\/formSetWanPPPoE file. Specifically, the manipulation of the ‘curTime’ argument can lead to this overflow<\/a>. Buffer overflows<\/a> occur when more data is written into a buffer than it can handle, leading to the corruption of adjacent memory spaces. This vulnerability is particularly dangerous because it can be remotely<\/a> exploited, offering an attacker the ability to execute arbitrary code on the affected system.<\/p>\n

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

To provide a basic understanding of how this vulnerability might be exploited, consider the following conceptual HTTP request. This is not an actual exploit, but rather a demonstration of how the ‘curTime’ argument could be manipulated to trigger a buffer overflow<\/a>.<\/p>\n

POST \/goform\/formSetWanPPPoE HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ncurTime=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n
In this example, the ‘curTime’ argument is overfilled with the letter ‘A’, which could potentially cause a buffer overflow in systems vulnerable<\/a> to CVE-2025-8168.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To protect against this vulnerability<\/a>, it is recommended to apply the vendor-supplied patch. In cases where this is not possible, such as when products are no longer supported by the manufacturer, deploying a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary mitigation. These solutions can help detect and block attempts to exploit this vulnerability<\/a>. However, they should not be considered a long-term solution. Users and system administrators are strongly urged to update or replace affected products as soon as possible to ensure the security of their networks<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is a minefield of vulnerabilities, each with the potential to wreak havoc if not properly addressed. One such vulnerability, discovered in the D-Link DIR-513 1.10, poses a significant threat to out-of-support products. The vulnerability is cataloged under the identifier CVE-2025-8168 and has been given a critical severity rating. This is due […]<\/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-59806","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