Critical severity9.8NVD Advisory· Published Jul 15, 2025· Updated Apr 15, 2026
CVE-2025-52376
CVE-2025-52376
Description
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.
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Affected products
3- Range: <= UV1.2.7
- Range: <= UV1.2.7
Patches
Vulnerability mechanics
References
1News mentions
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