CVE-2021-31519 Privilege escalation in Trend Micro HouseCall for Home Networks

High 7.3 Published 12 May 2021 Updated 3 Aug 2024

An attacker with low-privileged code execution can escalate privileges by placing malicious code in installer folders executed by an Administrator during a scan.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-31519?

CVE-2021-31519 is a high-severity vulnerability in Trend Micro HouseCall for Home Networks, published on 12 May 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An incorrect permission vulnerability in the product installer folders for Trend Micro HouseCall for Home Networks version 5.3.1179 and below could allow an attacker to escalate privileges by placing arbitrary code on a specified folder and have that code be executed by an Administrator who is running a scan. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.

Weakness: CWE-276

Which versions are affected by CVE-2021-31519?

It affects 1 product.

Products include Trendmicro Housecall for Home Networks.

How do I fix CVE-2021-31519?

No fix has been published for CVE-2021-31519 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-31519 being exploited?

There is no known exploitation of CVE-2021-31519 in the wild and no public exploit code.

Sources

Also known as GHSA-4xjw-g3w3-88q2.