CVE-2021-45440: Trend Micro Apex One

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A unnecessary privilege vulnerability in Trend Micro Apex One and Trend Micro Worry-Free Business Security 10.0 SP1 (on-prem versions only) could allow a local attacker to abuse an impersonation privilege and elevate to a higher level of privileges. 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
• Trend Micro Worry-Free Business Security Services: affected versions not specified

Published 2022-01-10. Last modified 2026-06-17.