CVE-2007-5622: 3proxy

Medium severity, CVSS 5.0. EPSS: 2.1% chance of exploitation in the next 30 days.

Double free vulnerability in the ftpprchild function in ftppr in 3proxy 0.5 through 0.5.3i allows remote attackers to cause a denial of service (daemon crash) via multiple OPEN commands to the FTP proxy.

Affected products

• 3proxy 3proxy: version 0.5 only; version 0.5.1 only; version 0.5.2 only; version 0.5.3g only; version 0.5.3h only; version 0.5.3i only

Published 2007-10-29. Last modified 2026-06-16.