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VULNERABILITIES

CVE-2026-31847 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://nexxt-connectivity-frontend.s3.amazonaws.com/media/docs/Nebula300+_v12.01.01.37.zip TuranSecProduct
https://www.nexxtsolutions.com/connectivity/internal-products/ARN02304U6/ TuranSecProduct

Weakness Enumeration

CWE-IDCWE NameSource
CWE-912Hidden FunctionalityTuranSec

Affected Products

ProductVersions
nexxtsolutions nebula300plus firmware
<= 12.01.01.37

CPE

  • cpe:2.3:o:nexxtsolutions:nebula300plus_firmware:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
nexxtsolutions nebula300plus
All versions

CPE

  • cpe:2.3:h:nexxtsolutions:nebula300plus:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-31847
NVD Published Date:
Mar 23, 2026
NVD Last Modified:
Aug 10, 2026
Source:
TuranSec
CVE-2026-31847 Details - Not Deferred