CVE-2021-32458: Trend Micro Home Network Security

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl which could lead to code execution on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.

Affected products

• Trend Micro Home Network Security: up to and including 6.6.604

Published 2021-05-27. Last modified 2026-06-17.