A link following denial-of-service (DoS) vulnerability in the Trend Micro Security (Consumer) 2021 familiy of products could allow an attacker to abuse the PC Health Checkup feature of the product to create symlinks that would allow modification of files which could lead to a denial-of-service.

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Trend Micro Maximum Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Maximum Security Agent. By creating a directory junction, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

The Trend Micro Maximum Security 2021 (v17) consumer product is vulnerable to an improper access control vulnerability in the installer which could allow a local attacker to escalate privileges on a target machine. Please note than an attacker must already have local user privileges and access on the machine to exploit this vulnerability.

The Trend Micro Security 2020 and 2021 families of consumer products are vulnerable to a code injection vulnerability which could allow an attacker to disable the program's password protection and disable protection. An attacker must already have administrator privileges on the machine to exploit this vulnerability.