CVE-2021-28646: Trend Micro Apex One

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An insecure file permissions vulnerability in Trend Micro Apex One, Apex One as a Service and OfficeScan XG SP1 could allow a local attacker to take control of a specific log file on affected installations.

Affected products

• Trend Micro Apex One: version 2019 only
• Trend Micro OfficeScan: version xg only

Published 2021-04-13. Last modified 2026-06-17.