Is CVE-2021-36741 actively exploited?

CVE-2021-36741 has no public evidence of in-the-wild exploitation as of 2025-10-31.

What is the CVSS score for CVE-2021-36741?

CVE-2021-36741 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-36741?

Patch guidance is available from trendmicro security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-36741.

Fix CVE-2021-36741 - HIGH trendmicro officescan

Q: Which products are affected by CVE-2021-36741?

4 products: trendmicro officescan, trendmicro officescan business security, trendmicro apex one, trendmicro worry-free business security.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-434 · Unrestricted File Upload CWE-434 · Unrestricted File Upload

Metadata

Primary Vendor: TRENDMICRO
Published: 7/29/2021
Last Modified: 10/31/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

trendmicro : officescantrendmicro : officescan_business_securitytrendmicro : apex_onetrendmicro : worry-free_business_security

Remediation Guidance

Executive Summary

View on NIST NVD