AUGUST 4, 2026
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Case File

CVE-2025-52376

CRITICAL · CVSS 9.8 EPSS 9.14% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-07-15 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-52376
Severity
CRITICAL
CVSS
9.8
EPSS
9.14%

Original NVD 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.