CVE-2009-4051: Downstairs.dnsalias Home FTP Server

Medium severity, CVSS 5.0. EPSS: 6.2% chance of exploitation in the next 30 days.

Home FTP Server 1.10.1.139 allows remote attackers to cause a denial of service (daemon outage) via multiple invalid SITE INDEX commands.

Affected products

• Downstairs.dnsalias Home FTP Server: version 1.10.1.139 only

Published 2009-11-23. Last modified 2026-06-16.