CVE-2021-43663 Command injection in n/a

High 7.5 Published 30 Mar 2022 Updated 4 Aug 2024

Attackers can execute arbitrary commands on TOTOLink EX300_v2 routers via the cloudupdate_check component.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-43663?

CVE-2021-43663 is a high-severity command injection vulnerability in n/a, published on 30 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component cloudupdate_check.

Weakness: CWE-77

Which versions are affected by CVE-2021-43663?

It affects 1 product.

Products include Totolink Ex300 V2 Firmware.

How do I fix CVE-2021-43663?

No fix has been published for CVE-2021-43663 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-43663 being exploited?

There is no known exploitation of CVE-2021-43663 in the wild and no public exploit code.

Sources

Also known as GHSA-xqww-qhcc-x39q.