CVE-2025-5904 TOTOLINK T10 POST Request cstecgi.cgi setWiFiMeshName buffer overflow

High 8.7 Published 10 Jun 2025 Updated 10 Jun 2025

Remote attackers can trigger a buffer overflow in the setWiFiMeshName function via a crafted POST request, potentially leading to code execution or service disruption.

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-2025-5904?

CVE-2025-5904 is a high-severity memory corruption vulnerability in TOTOLINK T10, published on 10 Jun 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 T10 4.1.8cu.5207. It has been declared as critical. Affected by this vulnerability is the function setWiFiMeshName of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument device_name leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-5904?

It affects 1 product.

Products include Totolink T10 Firmware.

How do I fix CVE-2025-5904?

No fix has been published for CVE-2025-5904 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-5904 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5904 exists.

Sources

Also known as GHSA-m742-x7cw-3g4q.