CVE-2021-25237: Trend Micro Apex One Improper Access Control Information Disclosure Vulnerability

Published Feb 4, 2021
·
Updated

An improper access control vulnerability in Trend Micro Apex One (on-prem) could allow an unauthenticated user to obtain information about the managing port used by agents.

Other sources

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Trend Micro Apex One. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web console, which listens on TCP port 4343 by default. The issue results from improper access control. An attacker can leverage this vulnerability to disclose information from the application.

Affected Software

3 affected components
Trend Micro Apex One
trendmicro Apex One=2019
Microsoft Windows

Event History

Feb 4, 2021
CVE Published
via MITRE·07:36 PM
Data Sourced
via MITRE·07:36 PM
DescriptionWeakness
Feb 24, 2025
Advisory Published
via ZDI·09:35 AM

Frequently Asked Questions

1

What is the severity of CVE-2021-25237?

CVE-2021-25237 is classified as a medium severity vulnerability.

2

How do I fix CVE-2021-25237?

To fix CVE-2021-25237, it is recommended to apply the latest security updates provided by Trend Micro for Apex One.

3

Who is affected by CVE-2021-25237?

CVE-2021-25237 affects Trend Micro Apex One installations, particularly version 2019.

4

What type of vulnerability is CVE-2021-25237?

CVE-2021-25237 is an improper access control vulnerability.

5

What can attackers do exploiting CVE-2021-25237?

Exploiting CVE-2021-25237 allows attackers to disclose sensitive information about the managing port used by agents.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203