CVE-2015-3326: Trend Micro Scanmail

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

Trend Micro ScanMail for Microsoft Exchange (SMEX) 10.2 before Hot Fix Build 3318 and 11.0 before Hot Fix Build 4180 creates session IDs for the web console using a random number generator with predictable values, which makes it easier for remote attackers to bypass authentication via a brute force attack.

Affected products

• Trend Micro Scanmail: version 10.2 only; version 11.0 only

Published 2015-05-14. Last modified 2026-06-17.