CVE-2025-52376

An authentication bypass vulnerability in the /web/um_open_telnet.cgi endpoint in Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below, allowing an attacker to remotely enable the Telnet service without authentication, bypassing security controls. The Telnet server is then accessible with hard-coded credentials, allowing attackers to gain administrative shell access and execute arbitrary commands on the device.

An authentication bypass vulnerability in the /web/um_open_telnet.cgi endpoint in Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below, allowing an attacker to remotely enable the Telnet service without authentication, bypassing security controls. The Telnet server is then accessible with hard-coded credentials, allowing attackers to gain administrative shell access and execute arbitrary commands on the device.

Una vulnerabilidad de omisión de autenticación en el endpoint /web/um_open_telnet.cgi del router de malla Nexxt Solutions NCM-X1800 con firmware UV1.2.7 y anteriores permite a un atacante habilitar remotamente el servicio Telnet sin autenticación, evadiendo así los controles de seguridad. El servidor Telnet es entonces accesible con credenciales predefinidas, lo que permite a los atacantes obtener acceso administrativo al shell y ejecutar comandos arbitrarios en el dispositivo.