CVE-2026-2137 Tenda TX3 SetIpMacBind buffer overflow

High 8.7 Published 8 Feb 2026 Updated 23 Feb 2026

Remote attackers can trigger a buffer overflow in the Tenda TX3 router's SetIpMacBind function, 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-2026-2137?

CVE-2026-2137 is a high-severity memory corruption vulnerability in Tenda TX3, published on 8 Feb 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 TX3 up to 16.03.13.11_multi. This impacts an unknown function of the file /goform/SetIpMacBind. The manipulation of the argument list leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-2137?

It affects 1 product.

Products include Tenda Tx3 Firmware.

How do I fix CVE-2026-2137?

No fix has been published for CVE-2026-2137 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-2026-2137 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2137 exists.

Sources

Also known as GHSA-cp9m-vc98-h8c6.