CVE-2018-6223: Trend Micro Email Encryption Gateway

Critical severity, CVSS 9.8. EPSS: 10% chance of exploitation in the next 30 days.

A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to manipulate the registration process of the product to reset configuration parameters.

Affected products

• Trend Micro Email Encryption Gateway: version 5.5 only

Published 2018-03-15. Last modified 2026-06-17.