CVE-2021-36741

Trend Micro Apex One, Trend Micro OfficeScan, Trend Micro Worry-Free Business Security

Published 29 Jul 2021 · updated 17 Jun 2026 · Analyzed

8.8 High · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, with a remediation deadline of 17 Nov 2021 for US federal agencies.

Required action: Apply updates per vendor instructions.

Description

An improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG, and Worry-Free Business Security 10.0 SP1 allows a remote attached to upload arbitrary files on affected installations. Please note: an attacker must first obtain the ability to logon to the product�s management console in order to exploit this vulnerability.

References

success.trendmicro.com/jp/solution/000287796 · Broken Link, Vendor Advisory
success.trendmicro.com/jp/solution/000287815 · Broken Link, Vendor Advisory
success.trendmicro.com/solution/000287819 · Broken Link, Vendor Advisory
success.trendmicro.com/solution/000287820 · Broken Link, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36741 · US Government Resource