CVE-2025-4867 Tenda A15 ArpNerworkSet formArpNerworkSet denial of service

High 7.1 Published Updated

Remote attackers can cause a denial of service on Tenda A15 routers by exploiting the formArpNerworkSet function.

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-2025-4867?

CVE-2025-4867 is a high-severity denial of service vulnerability in Tenda A15, published on 18 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 A15 15.13.07.13. It has been declared as problematic. Affected by this vulnerability is the function formArpNerworkSet of the file /goform/ArpNerworkSet. The manipulation leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-404

Which versions are affected by CVE-2025-4867?

It affects 1 product.

Products include Tenda A15 Firmware.

How do I fix CVE-2025-4867?

No fix has been published for CVE-2025-4867 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-4867 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4867 exists.

Sources

Also known as GHSA-88vx-23hw-hc33.

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