CVE-2021-36741
Trend Micro Multiple Products Improper Input Validation Vulnerability
Trend Micro · Apex One, Apex One as a Service, and Worry-Free Business Security
Vulnerability details
Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security contain an improper input validation vulnerability that allows a remote attacker to upload files.
Added to CISA KEV: 2021-11-03
Ransomware campaign use: Unknown
CISA due date: 2021-11-17
Defensive guidance from CISA
Apply updates per vendor instructions.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC