CVE-2025-4299 Tenda AC1206 openSchedWifi setSchedWifi buffer overflow

High 8.7 Published 6 May 2025 Updated 6 May 2025

Remote attackers can exploit a buffer overflow in the Tenda AC1206 router's setSchedWifi function to execute arbitrary code.

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-2025-4299?

CVE-2025-4299 is a high-severity memory corruption vulnerability in Tenda AC1206, published on 6 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Tenda AC1206 up to 15.03.06.23. It has been rated as critical. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-4299?

It affects 1 product.

Products include Tenda Ac1206 Firmware.

How do I fix CVE-2025-4299?

No fix has been published for CVE-2025-4299 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-2025-4299 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4299 exists.

Sources

Also known as GHSA-p635-c8mp-2g9m.