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OpenAdvisories
High · 7.7 CVE-2026-31851 EUVD-2026-14421GHSA-v8rr-whp7-p37j

Nexxt Nebula 300+ - Lack of Rate Limiting Enables Brute-Force Attacks

Published Mar 23, 2026 · Updated Aug 10, 2026 · Assigned by TuranSec

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.

Affected products

VendorProductAffectedFixed
Nexxt Solutions Nebula 300+ <= 12.01.01.37 —

References