CVE-2026-31847

N/A

Description

Hidden functionality in the /goform/setSysTools endpoint in Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 allows remote enablement of a Telnet service. By sending a crafted POST request with parameters such as telnetManageEn=true and telnetPwd, an authenticated attacker can activate a Telnet service on port 23. This exposes a privileged diagnostic interface that is not intended for external access and can be used to interact with the underlying system.

CVE Details

CVSS v3.1 ScoreN/A

Published3/23/2026

Last Modified3/26/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-912

References

https://nexxt-connectivity-frontend.s3.amazonaws.com/media/docs/Nebula300+_v12.01.01.37.zip(309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c)

https://www.nexxtsolutions.com/connectivity/internal-products/ARN02304U6/(309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.