CVE-2005-0431: Barracuda Networks Barracuda Spam Firewall

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

Barracuda Spam Firewall 3.1.10 and earlier does not restrict the domains that white-listed domains can send mail to, which allows members of white-listed domains to use Barracuda as an open mail relay for spam.

Affected products

• Barracuda Networks Barracuda Spam Firewall: version 3.1.10 only

Published 2005-05-02. Last modified 2026-06-16.