CVE-2018-3609: Trend Micro Interscan Messaging Security Virtual Appliance

High severity, CVSS 8.1. EPSS: 21.4% chance of exploitation in the next 30 days.

A vulnerability in the Trend Micro InterScan Messaging Security Virtual Appliance 9.0 and 9.1 management portal could allow an unauthenticated user to access sensitive information in a particular log file that could be used to bypass authentication on vulnerable installations.

Affected products

• Trend Micro Interscan Messaging Security Virtual Appliance: version 9.0 only; version 9.1 only

Published 2018-02-16. Last modified 2026-06-17.