CVE-2026-31847

Hidden functionality in the /goform/setSysTools endpoint in Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 allows remote enablement of a Telnet service. By sending a crafted POST request with parameters such as telnetManageEn=true and telnetPwd, an authenticated attacker can...

EUVD-2026-14413

Hidden functionality in the /goform/setSysTools endpoint in Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 allows remote enablement of a Telnet service. Once enabled, the service exposes a privileged diagnostic management interface over the network, increasing the attack surface...

CVE-2019-16412

The CVE concerns a vulnerability in Tenda N301 wireless routers affecting the goform/setSysTools handler. A zero wanMTU value can be submitted and, unlike in the GUI which blocks it, may trigger a device crash. The issue is documented with the same description across NVD/Red Hat/NVD mirrors, conf...

CVE-2019-16412

In goform/setSysTools on Tenda N301 wireless routers, attackers can trigger a device crash via a zero wanMTU value. Prohibition of this zero value is only enforced within the GUI...