CVE-2017-11391: Trend Micro Interscan Messaging Security Virtual Appliance

High severity, CVSS 8.8. EPSS: 62.1% chance of exploitation in the next 30 days.

Proxy command injection vulnerability in Trend Micro InterScan Messaging Virtual Appliance 9.0 and 9.1 allows remote attackers to execute arbitrary code on vulnerable installations. The specific flaw can be exploited by parsing the "t" parameter within modTMCSS Proxy. Formerly ZDI-CAN-4744.

Affected products

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

Published 2017-08-03. Last modified 2026-06-17.