CVE-2025-7460 TOTOLINK T6 HTTP POST Request cstecgi.cgi setWiFiAclRules buffer overflow

High 8.7 Published 11 Jul 2025 Updated 14 Jul 2025

Remote attackers can trigger a buffer overflow in the WiFi ACL rules handler, potentially leading to code execution or privilege escalation on TOTOLINK T6 routers.

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-2025-7460?

CVE-2025-7460 is a high-severity memory corruption vulnerability in TOTOLINK T6, published on 11 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this vulnerability is the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument mac 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-2025-7460?

It affects 1 product.

Products include Totolink T6 Firmware.

How do I fix CVE-2025-7460?

No fix has been published for CVE-2025-7460 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-2025-7460 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7460 exists.

Sources

Also known as GHSA-xgh4-wmvj-9mvr.