CVE-2025-7525 TOTOLINK T6 HTTP POST Request cstecgi.cgi setTracerouteCfg command injection

Medium 5.3 Published 13 Jul 2025 Updated 15 Jul 2025

Remote attackers can execute arbitrary commands on TOTOLINK T6 routers via the setTracerouteCfg function in cstecgi.cgi.

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-2025-7525?

CVE-2025-7525 is a medium-severity command injection vulnerability in TOTOLINK T6, published on 13 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been declared as critical. This vulnerability affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument command leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2025-7525?

It affects 1 product.

Products include Totolink T6 Firmware.

How do I fix CVE-2025-7525?

No fix has been published for CVE-2025-7525 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-2025-7525 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7525 exists.

Sources

Also known as GHSA-9h9m-2xjq-cm6v.