CVE-2021-25243: Trend Micro Apex One

Medium severity, CVSS 5.3. EPSS: 2.2% chance of exploitation in the next 30 days.

An improper access control vulnerability in Trend Micro Apex One (on-prem and SaaS), OfficeScan XG SP1, and Worry-Free Business Security 10.0 SP1 could allow an unauthenticated user to obtain patch level information.

Affected products

• Trend Micro Apex One: version 2019 only
• Trend Micro OfficeScan: version xg only
• Trend Micro Worry-Free Business Security: version 10.0 only

Published 2021-02-04. Last modified 2026-06-17.