CVE-2025-4007 Tenda W12/i24 httpd modules cgidhcpsCfgSet stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in Tenda W12/i24 routers via the httpd module, potentially leading to code execution.

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-2025-4007?

CVE-2025-4007 is a high-severity memory corruption vulnerability in Tenda W12, published on 28 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability classified as critical was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). Affected by this vulnerability is the function cgidhcpsCfgSet of the file /goform/modules of the component httpd. The manipulation of the argument json 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-119

Which versions are affected by CVE-2025-4007?

It affects 2 products.

Products include Tenda I24 Firmware, Tenda W12 Firmware.

How do I fix CVE-2025-4007?

No fix has been published for CVE-2025-4007 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-2025-4007 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4007 exists.

Sources

Also known as GHSA-rxjp-vx38-m3vx.

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