CVE-2025-1899 Tenda TX3 setPptpUserList buffer overflow

High 7.1 Published 4 Mar 2025 Updated 4 Mar 2025

Remote attackers can trigger a buffer overflow in the Tenda TX3 router via the setPptpUserList endpoint, 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-2025-1899?

CVE-2025-1899 is a high-severity memory corruption vulnerability in Tenda TX3, published on 4 Mar 2025. 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 16.03.13.11_multi and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/setPptpUserList. The manipulation of the argument list leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-1899?

It affects 1 product.

Products include Tenda Tx3 Firmware.

How do I fix CVE-2025-1899?

No fix has been published for CVE-2025-1899 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-2025-1899 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-1899 exists.

Sources

Also known as GHSA-5h5x-6x6r-4c7m.