CVE-2025-7586 Tenda AC500 setWtpData formSetAPCfg stack-based overflow

High 8.7 Published 14 Jul 2025 Updated 14 Jul 2025

Remote attackers can trigger a stack-based buffer overflow in the Tenda AC500 router via the setWtpData endpoint, 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-2025-7586?

CVE-2025-7586 is a high-severity memory corruption vulnerability in Tenda AC500, published on 14 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 Tenda AC500 2.0.1.9(1307). It has been declared as critical. Affected by this vulnerability is the function formSetAPCfg of the file /goform/setWtpData. The manipulation of the argument radio_2g_1 leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-787, CWE-119

Which versions are affected by CVE-2025-7586?

It affects 1 product.

Products include Tenda Ac500 Firmware.

How do I fix CVE-2025-7586?

No fix has been published for CVE-2025-7586 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-2025-7586 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7586 exists.

Sources

Also known as GHSA-6vjw-r74g-hvvp.