CVE-2026-3810 Tenda FH1202 DhcpListClient fromDhcpListClient stack-based overflow

High 8.7 Published 9 Mar 2026 Updated 10 Mar 2026

A stack-based buffer overflow in the Tenda FH1202 router allows remote attackers to execute arbitrary code via the DhcpListClient interface.

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-2026-3810?

CVE-2026-3810 is a high-severity memory corruption vulnerability in Tenda Fh1202 Firmware, published on 9 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been found in Tenda FH1202 1.2.0.14(408). This affects the function fromDhcpListClient of the file /goform/DhcpListClient. The manipulation of the argument page leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-3810?

It affects 1 product.

Products include Tenda Fh1202 Firmware.

How do I fix CVE-2026-3810?

No fix has been published for CVE-2026-3810 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-2026-3810 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3810 exists.

All Tenda Fh1202 Firmware vulnerabilities

Sources

Also known as GHSA-jv37-r43f-6p9j.