Denial of service in Trend Micro Apex One and Worry-Free Business Security

Published: 2021-10-04
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3848
Exploitation vector Local
Public exploit N/A
Vulnerable software
Apex One
Client/Desktop applications / Antivirus software/Personal firewalls

Worry-Free Business Security
Client/Desktop applications / Software for system administration

Vendor Trend Micro

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security restrictions bypass

EUVDB-ID: #VU57037

Risk: Low


CVE-ID: CVE-2021-3848

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper privileges management in Trend Micro Apex One and Trend Micro Worry-Free Business Security. A local user can create arbitrary files on the system with higher privileges.

Successful exploitation of the vulnerability can result in denial of service conditions.


Install updates from vendor's website.

Vulnerable software versions

Apex One: 2019 - Patch 5 b9565

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?