CVE-2019-12143: Progress WS_FTP Server

Medium severity, CVSS 5.3. EPSS: 2% chance of exploitation in the next 30 days.

A Directory Traversal issue was discovered in SSHServerAPI.dll in Progress ipswitch WS_FTP Server 2018 before 8.6.1. An attacker can supply a string using special patterns via the SCP protocol to disclose WS_FTP usernames as well as filenames.

Affected products

• Progress WS_FTP Server: before 8.6.1 (fixed in 8.6.1)

Published 2019-06-11. Last modified 2026-06-17.