Vulnerability Details CVE-2026-31851
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.2%
CVSS Severity
CVSS v3 Score 9.8
References
Products affected by CVE-2026-31851
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cpe:2.3:h:nexxtsolutions:nebula300plus:-
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cpe:2.3:o:nexxtsolutions:nebula300plus_firmware:*