CVE-2025-14992 Tenda AC18 HTTP Request GetParentControlInfo strcpy stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda AC18 router's HTTP handler via the mac 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-2025-14992?

CVE-2025-14992 is a high-severity memory corruption vulnerability in Tenda Ac18 Firmware, published on 21 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security vulnerability has been detected in Tenda AC18 15.03.05.05. The impacted element is the function strcpy of the file /goform/GetParentControlInfo of the component HTTP Request Handler. The manipulation of the argument mac leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-14992?

It affects 1 product.

Products include Tenda Ac18 Firmware.

How do I fix CVE-2025-14992?

No fix has been published for CVE-2025-14992 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-2025-14992 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14992 exists.

All Tenda Ac18 Firmware vulnerabilities

Sources

Also known as GHSA-f39m-23x8-34jr.

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