CVE-2026-3811 Tenda FH1202 P2pListFilter fromP2pListFilter stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda FH1202 router's P2pListFilter 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-2026-3811?

CVE-2026-3811 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 was found in Tenda FH1202 1.2.0.14(408). This impacts the function fromP2pListFilter of the file /goform/P2pListFilter. The manipulation of the argument page results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-3811?

It affects 1 product.

Products include Tenda Fh1202 Firmware.

How do I fix CVE-2026-3811?

No fix has been published for CVE-2026-3811 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-2026-3811 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3811 exists.

All Tenda Fh1202 Firmware vulnerabilities

Sources

Also known as GHSA-m38h-f5w2-fqmq.

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