CVE-2021-25248: Trend Micro Apex One

Medium severity, CVSS 5.5. EPSS: 0.9% chance of exploitation in the next 30 days.

An out-of-bounds read information disclosure vulnerability in Trend Micro Apex One (on-prem and SaaS), OfficeScan XG SP1, and Worry-Free Business Security (10.0 SP1 and Services) could allow an attacker to disclose sensitive information about a named pipe. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

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.