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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 · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2021-11-17federal remediation due date
4.95%EPSS exploit probability (30 days) 91.8th percentile
8.8 HIGHCVSS 3.1
Unknownknown ransomware use
97days from NVD publication to KEV
What it is
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 (CISA)
Apply updates per vendor instructions.
| CWE | CWE-22 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2021-07-29 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-36741.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.