SOURCE FACT
Trend Micro · Apex One, Apex One as a Service, and Worry-Free Business Security
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.
Required action
Apply updates per vendor instructions.
CISA notes
https://success.trendmicro.com/dcx/s/solution/000287819?language=en_US, https://success.trendmicro.com/dcx/s/solution/000287820?language=en_US; https://nvd.nist.gov/vuln/detail/CVE-2021-36741
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