CVE-2006-4000: Barracuda Networks Barracuda Spam Firewall

Medium severity, CVSS 4.0. EPSS: 5.8% chance of exploitation in the next 30 days.

Directory traversal vulnerability in cgi-bin/preview_email.cgi in Barracuda Spam Firewall (BSF) 3.3.01.001 through 3.3.03.053 allows remote authenticated users to read arbitrary files via a .. (dot dot) in the file parameter.

Affected products

• Barracuda Networks Barracuda Spam Firewall: version 3.3.01.001 only; version 3.3.03.053 only; version 3.3.03.055 only

Published 2006-08-05. Last modified 2026-06-16.