CVE-2021-25239
An improper access control vulnerability in Trend Micro Apex One (on-prem), OfficeScan XG SP1,...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-25239- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-25239- Updated
- 2026-11-02
EUVDEUVD-2021-12150 No score
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.
- Record
EUVD-2021-12150- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-chw9-27cv-p686
An improper access control vulnerability in Trend Micro Apex One (on-prem), OfficeScan XG SP1,...
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.
- Record
GHSA-chw9-27cv-p686- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-25239 is a medium vulnerability (CVSS 5.3) in Trend Micro Apex One, published February 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.12%, the 81st percentile. No source names a fixed version.