{"id":87214,"date":"2026-07-17T00:57:01","date_gmt":"2026-07-17T00:57:01","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-3379-critical-buffer-overflow-vulnerability-in-pcman-ftp-server-2-0-7","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3379-critical-buffer-overflow-vulnerability-in-pcman-ftp-server-2-0-7\/","title":{"rendered":"CVE-2025-3379: Critical Buffer Overflow Vulnerability in PCMan FTP Server 2.0.7<\/strong>"},"content":{"rendered":"

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

CVE-2025-3379 is a critical vulnerability discovered in PCMan FTP Server 2.0.7. The flaw lies within the EPSV Command Handler, where a manipulation can lead to a buffer overflow. This vulnerability can be exploited remotely, putting a wide range of systems at risk. Given the severity of the potential impact, including system compromise and data leakage, it is crucial for system administrators and security teams to apply necessary patches immediately.<\/p>\n

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

CVE ID: CVE-2025-3379
\nSeverity: Critical (7.3 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise, 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 critical vulnerability in PCMan FTP Server 2.0.7 is tied to the EPSV Command Handler. The flaw occurs due to inadequate handling of user-supplied input, leading to a buffer overflow condition. An attacker can exploit this by sending specially crafted commands to the server, causing it to overflow its buffer. This overflow can lead to the execution of arbitrary code, or even full system compromise.<\/p>\n

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

Here’s a hypothetical example of how the vulnerability might be exploited using FTP commands:<\/p>\n

USER anonymous\nPASS\nEPSV AAAAAAAAAAAAAAAAAAAAAAAAA...[long string of \"A\"s]...<\/code><\/pre>\n
In this conceptual example, the EPSV command is followed by a long string of “A”s, which is designed to overflow the buffer. This could allow an attacker to overwrite memory locations and execute arbitrary code.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-3379 is a critical vulnerability discovered in PCMan FTP Server 2.0.7. The flaw lies within the EPSV Command Handler, where a manipulation can lead to a buffer overflow. This vulnerability can be exploited remotely, putting a wide range of systems at risk. Given the severity of the potential impact, including system compromise and data […]<\/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-87214","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