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.
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00088}


Tue, 15 Jul 2025 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-287
CWE-798
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 15 Jul 2025 14:15:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-07-15T00:00:00.000Z

Updated: 2025-07-15T14:23:54.882Z

Reserved: 2025-06-16T00:00:00.000Z

Link: CVE-2025-52376

cve-icon Vulnrichment

Updated: 2025-07-15T14:22:59.995Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-15T14:15:30.540

Modified: 2025-07-15T20:07:28.023

Link: CVE-2025-52376

cve-icon Redhat

No data.