CVE-2021-3848: Trend Micro Apex One

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An arbitrary file creation by privilege escalation vulnerability in Trend Micro Apex One, Apex One as a Service, Worry-Free Business Security 10.0 SP1, and Worry-Free Business Security Services could allow a local attacker to create an arbitrary file with higher privileges that could lead to a denial-of-service (DoS) on affected installations. 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 Worry-Free Business Security: version 10.0 only

Published 2021-10-06. Last modified 2026-06-17.