CVE-2020-11707: Provideserver Provide FTP Server

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.

Affected products

• Provideserver Provide FTP Server: up to and including 13.1

Published 2020-04-12. Last modified 2026-06-17.