CVE-2006-6564: Filezilla

Medium severity, CVSS 4.0. EPSS: 6.1% chance of exploitation in the next 30 days.

FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a malformed argument to the STOR command, which results in a NULL pointer dereference. NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command.

Affected products

• Filezilla Filezilla: up to and including 0.9.21

Published 2006-12-15. Last modified 2026-06-16.