Apex One and Apex Central
CVE-2021-36741: Multiple Products Improper Input Validation
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Trend Micro Apex One 2019, SaaS | See the advisory |
| Trend Micro OfficeScan XG SP1 | See the advisory |
| Trend Micro Worry-Free Business Security 10.0 SP1 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Exploitation
CISA lists this CVE as exploited in the wild since 3 Nov 2021.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 12 Oct 2026.