CVE-2005-0851: Filezilla-Project Filezilla Server

Medium severity, CVSS 5.0. EPSS: 2.2% chance of exploitation in the next 30 days.

FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote attackers to cause a denial of service (infinite loop) via certain file uploads or directory listings.

Affected products

• Filezilla-Project Filezilla Server: before 0.9.6 (fixed in 0.9.6)

Published 2005-05-02. Last modified 2026-06-16.