CVE-2025-7853 Tenda FH451 SetIpBind fromSetIpBind stack-based overflow

High 8.7 Published 19 Jul 2025 Updated 21 Jul 2025

A remote attacker can trigger a stack-based buffer overflow in the Tenda FH451 router's SetIpBind function, potentially leading to arbitrary 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-2025-7853?

CVE-2025-7853 is a high-severity memory corruption vulnerability in Tenda FH451, published on 19 Jul 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 FH451 1.0.0.9. It has been rated as critical. This issue affects the function fromSetIpBind of the file /goform/SetIpBind. The manipulation of the argument page leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-7853?

It affects 1 product.

Products include Tenda Fh451 Firmware.

How do I fix CVE-2025-7853?

No fix has been published for CVE-2025-7853 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-2025-7853 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7853 exists.

Sources

Also known as GHSA-3w39-m5qw-fwfj.