CVE-2020-21937 Command injection in n/a

Critical 9.8 Published 21 Jul 2021 Updated 4 Aug 2024

Attackers can execute arbitrary system commands on Motorola CX2 routers via the HNAP1 interface, potentially compromising the device.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-21937?

CVE-2020-21937 is a critical command injection vulnerability in n/a, published on 21 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An command injection vulnerability in HNAP1/SetWLanApcliSettings of Motorola CX2 router CX 1.0.2 Build 20190508 Rel.97360n allows attackers to execute arbitrary system commands.

Weakness: CWE-78

Which versions are affected by CVE-2020-21937?

It affects 1 product.

Products include Motorola Cx2 Firmware.

How do I fix CVE-2020-21937?

No fix has been published for CVE-2020-21937 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-2020-21937 being exploited?

There is no known exploitation of CVE-2020-21937 in the wild and no public exploit code.

Sources

Also known as GHSA-m5rx-hc2h-rx36.