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VULNERABILITIES

CVE-2026-31851 Details

Description

Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 does not implement rate limiting or account lockout mechanisms on authentication interfaces. An attacker can perform unlimited authentication attempts against endpoints that rely on credential validation, enabling brute-force attacks to guess administrative credentials without restriction.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/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-307Improper Restriction of Excessive Authentication AttemptsTuranSec

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

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-31851
NVD Published Date:
Mar 23, 2026
NVD Last Modified:
Jun 17, 2026
Source:
TuranSec
CVE-2026-31851 Details - Not Deferred