CVE-2026-31847

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.

CVSS

No CVSS.

References

Link	Resource
https://nexxt-connectivity-frontend.s3.amazonaws.com/media/docs/Nebula300+_v12.01.01.37.zip
https://www.nexxtsolutions.com/connectivity/internal-products/ARN02304U6/

Configurations

No configuration.

History

No history.

Information

Published : 2026-03-23 13:16

Updated : 2026-03-26 11:16

NVD link : CVE-2026-31847

Mitre link : CVE-2026-31847

CVE.ORG link : CVE-2026-31847

JSON object : View

Products Affected

No product.

CWE

CWE-912

Hidden Functionality

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