CVE-2021-25239

Name: CVE-2021-25239
Creator: NVD / NIST
Published: 2021-02-04T20:15:13.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 2.09%

Last modified Jun 17, 2026

CVE-2021-25239 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An improper access control vulnerability in Trend Micro Apex One (on-prem), OfficeScan XG SP1, and Worry-Free Business Security 10.0 SP1 could allow an unauthenticated user to obtain information about x86 agent hotfixes.. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

Description

An improper access control vulnerability in Trend Micro Apex One (on-prem), OfficeScan XG SP1, and Worry-Free Business Security 10.0 SP1 could allow an unauthenticated user to obtain information about x86 agent hotfixes.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

2.09%

79.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Trendmicro	Apex One	2019	—
Trendmicro	Officescan	xg	Sp1
Trendmicro	Worry-Free Business Security	10.0	Sp1

References

https://success.trendmicro.com/solution/000284202Patch, Vendor Advisory
https://success.trendmicro.com/solution/000284205Patch, Vendor Advisory
https://success.trendmicro.com/solution/000284206Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-112/Third Party Advisory, VDB Entry
https://success.trendmicro.com/solution/000284202Patch, Vendor Advisory
https://success.trendmicro.com/solution/000284205Patch, Vendor Advisory
https://success.trendmicro.com/solution/000284206Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-112/Third Party Advisory, VDB Entry

Timeline

Published: Feb 4, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25239?

How severe is CVE-2021-25239?

CVE-2021-25239 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25239?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25239?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST