CVE-2021-45986 Command injection in n/a

Critical 9.8 Published 4 Feb 2022 Updated 4 Aug 2024

Attackers can execute arbitrary commands on Tenda G1 and G3 routers via the usbOrdinaryUserName parameter in the USB share configuration function.

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-2021-45986?

CVE-2021-45986 is a critical command injection vulnerability in n/a, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetUSBShareInfo. This vulnerability allows attackers to execute arbitrary commands via the usbOrdinaryUserName parameter.

Weakness: CWE-78

Which versions are affected by CVE-2021-45986?

It affects 2 products.

Products include Tendacn G1 Firmware, Tendacn G3 Firmware.

How do I fix CVE-2021-45986?

No fix has been published for CVE-2021-45986 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-2021-45986 being exploited?

There is no known exploitation of CVE-2021-45986 in the wild and no public exploit code.

Sources

Also known as GHSA-wg58-6xwq-6qg8.