CVE-2006-0538: Ciphertrust Ironmail

Low severity, CVSS 2.6. EPSS: 2.1% chance of exploitation in the next 30 days.

CipherTrust IronMail 5.0.1, when "Denial of Service Protection" is enabled, allows remote attackers to cause a denial of service (possibly CPU consumption) via a SYN flood with malformed TCP packets from multiple connections.

Affected products

• Ciphertrust Ironmail: up to and including 5.0.1

Published 2006-02-04. Last modified 2026-06-16.