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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.09%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/Vagebondcur/nexxt-solutions-NCM-X1800-exploits
https://github.com/Vagebondcur/nexxt-solutions-NCM-X1800-exploits/blob/main/CVE-2025-52376/writeup.md

Frequently Asked Questions

What is the severity of CVE-2025-52376?
CVE-2025-52376 has been scored as a critical severity vulnerability.
How to fix CVE-2025-52376?
To fix CVE-2025-52376, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-52376 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52376 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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