{"id":55559,"date":"2025-06-27T19:16:23","date_gmt":"2025-06-27T19:16:23","guid":{"rendered":""},"modified":"2025-07-07T05:27:20","modified_gmt":"2025-07-07T11:27:20","slug":"cve-2025-6371-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6371-critical-buffer-overflow-vulnerability-in-d-link-dir-619l-2-06b01\/","title":{"rendered":"CVE-2025-6371: Critical Buffer Overflow Vulnerability in D-Link DIR-619L 2.06B01<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape is continuously changing, with new threats and vulnerabilities emerging almost daily. One of the most critical vulnerabilities discovered recently is CVE-2025-6371, which affects the D-Link DIR-619L 2.06B01. This vulnerability has been classified as critical<\/a> due to its potential for remote exploitation and the severity of the damage it can cause, including system compromise or data leakage. It’s particularly concerning as the function it affects is part of an unsupported product, hence putting systems and data<\/a> at a higher risk.<\/p>\n

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

CVE ID: CVE-2025-6371
\nSeverity: Critical (CVSS: 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-619L | 2.06B01<\/a><\/p>\n

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

This vulnerability resides in the function formSetEnableWizard of the file<\/a> \/goform\/formSetEnableWizard in the D-Link DIR-619L 2.06B01. The issue arises from manipulation of the argument curTime leading to a stack-based buffer overflow<\/a>. This kind of overflow occurs when more data is loaded into a buffer<\/a> than it can handle, causing excess data to overflow into adjacent memory spaces. Attackers can exploit this overflow to inject and execute malicious code<\/a> remotely.<\/p>\n

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

The following conceptual code represents how an attacker might exploit this vulnerability<\/a>. This is a simple HTTP POST request that sends a malicious payload to the vulnerable function in the formSetEnableWizard file<\/a>.<\/p>\n

POST \/goform\/formSetEnableWizard HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\ncurTime=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n
In this example, the ‘curTime’ parameter is filled with an excessive amount of ‘A’ characters, demonstrating a potential buffer overflow<\/a> attack. The exact nature of the malicious payload would depend on the specific goals of the attacker.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Due to the nature and severity of this vulnerability<\/a>, it is strongly recommended to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems can be configured to detect and block attempts to exploit this vulnerability<\/a>. However, it is crucial to remember that these are only temporary solutions and can’t replace the importance of applying the vendor\u2019s patch or switching to supported products.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is continuously changing, with new threats and vulnerabilities emerging almost daily. One of the most critical vulnerabilities discovered recently is CVE-2025-6371, which affects the D-Link DIR-619L 2.06B01. This vulnerability has been classified as critical due to its potential for remote exploitation and the severity of the damage it can cause, including […]<\/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-55559","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