CVE-2025-14879 Tenda WH450 HTTP Request onSSIDChange stack-based overflow

Critical 9.3 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda WH450 router via the onSSIDChange handler, potentially leading to code execution or denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-14879?

CVE-2025-14879 is a critical memory corruption vulnerability in Tenda WH450, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in Tenda WH450 1.0.0.18. Affected is an unknown function of the file /goform/onSSIDChange of the component HTTP Request Handler. This manipulation of the argument ssid_index causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-14879?

It affects 1 product.

Products include Tenda Wh450 Firmware.

How do I fix CVE-2025-14879?

No fix has been published for CVE-2025-14879 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-2025-14879 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14879 exists.

Sources

Also known as GHSA-fpvx-m3p8-8m2h.

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