{"id":87238,"date":"2026-07-19T07:02:24","date_gmt":"2026-07-19T07:02:24","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-3680-critical-buffer-overflow-vulnerability-in-pcman-ftp-server-2-0-7","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3680-critical-buffer-overflow-vulnerability-in-pcman-ftp-server-2-0-7\/","title":{"rendered":"CVE-2025-3680: Critical Buffer Overflow Vulnerability in PCMan FTP Server 2.0.7<\/strong>"},"content":{"rendered":"

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

A critical vulnerability, CVE-2025-3680, has been identified in PCMan FTP Server 2.0.7. This vulnerability pertains to an unknown function of LANG Command Handler and can lead to buffer overflow, compromising system integrity or leading to potential data leakage. Due to its severity, it is essential for system administrators and security professionals to understand the vulnerability and employ the necessary mitigation strategies.<\/p>\n

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

CVE ID: CVE-2025-3680
\nSeverity: Critical (7.3 CVSS score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

PCMan FTP Server | 2.0.7<\/p>\n

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

The vulnerability CVE-2025-3680 exists in an unknown function of the LANG command handler in PCMan FTP Server 2.0.7. An attacker can exploit this vulnerability by sending a specially crafted command that causes a buffer overflow. This buffer overflow can result in code execution, enabling the attacker to compromise the system or leak data.<\/p>\n

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

A conceptual example of exploiting this vulnerability might look like this:<\/p>\n

POST \/LANG\/CommandHandler HTTP\/1.1\nHost: target.example.com\nContent-Type: text\/plain\nLANG [Buffer overflow inducing string goes here]<\/code><\/pre>\n
This request sends a malicious command to the LANG Command Handler, causing a buffer overflow and creating potential for system compromise or data leakage.<\/p>\n
Mitigation<\/strong><\/p>\n
It is recommended to apply the vendor patch as soon as it is available. As a temporary mitigation measure, using Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) can help detect and prevent attacks. Regular monitoring and updates are crucial to ensure system security against such vulnerabilities.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability, CVE-2025-3680, has been identified in PCMan FTP Server 2.0.7. This vulnerability pertains to an unknown function of LANG Command Handler and can lead to buffer overflow, compromising system integrity or leading to potential data leakage. Due to its severity, it is essential for system administrators and security professionals to understand the […]<\/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":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-87238","post","type-post","status-publish","format-standard","hentry"],"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