CVE-2025-14994 Tenda FH1201/FH1206 HTTP Request webtypelibrary strcat stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in Tenda FH1201/FH1206 routers via the webSiteId parameter, 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-2025-14994?

CVE-2025-14994 is a high-severity memory corruption vulnerability in Tenda FH1201, published on 21 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in Tenda FH1201 and FH1206 1.2.0.14(408)/1.2.0.8(8155). This impacts the function strcat of the file /goform/webtypelibrary of the component HTTP Request Handler. This manipulation of the argument webSiteId causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-14994?

It affects 2 products.

Products include Tenda Fh1201 Firmware, Tenda Fh1206 Firmware.

How do I fix CVE-2025-14994?

No fix has been published for CVE-2025-14994 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-2025-14994 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14994 exists.

Sources

Also known as GHSA-hxpp-w5pc-mh6j.

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