CVE-2026-2167 Totolink WA300 cstecgi.cgi setAPNetwork os command injection

Medium 5.3 Published 8 Feb 2026 Updated 23 Feb 2026

Remote attackers can execute arbitrary OS commands via the Ipaddr argument in setAPNetwork, requiring authentication.

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

What is CVE-2026-2167?

CVE-2026-2167 is a medium-severity command injection vulnerability in Totolink WA300, published on 8 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was detected in Totolink WA300 5.2cu.7112_B20190227. The impacted element is the function setAPNetwork of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument Ipaddr results in os command injection. The attack may be performed from remote. The exploit is now public and may be used.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-2167?

It affects 1 product.

Products include Totolink Wa300 Firmware.

How do I fix CVE-2026-2167?

No fix has been published for CVE-2026-2167 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-2026-2167 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2167 exists.

Sources

Also known as GHSA-rm7q-jj78-qfc9.