CVE-2004-1848: Ipswitch WS_FTP Server

Medium severity, CVSS 5.0. EPSS: 8.1% chance of exploitation in the next 30 days.

Ipswitch WS_FTP Server 4.0.2 allows remote attackers to cause a denial of service (disk consumption) and bypass file size restrictions via a REST command with a large size argument, followed by a STOR of a smaller file.

Affected products

• Ipswitch WS_FTP Server: version 3.0_1 only; version 4.01 only
• Progress WS_FTP Server: version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; version 1.0.5 only; version 2.0 only; …

Published 2004-12-31. Last modified 2026-06-16.