Unspecified vulnerability in the Secure Shell (SSH) in HP Tru64 UNIX 5.1B-4 and 5.1B-3 allows remote attackers to identify valid users via unspecified vectors, probably related to timing attacks and AuthInteractiveFailureRandomTimeout.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.067
EPSS Ranking 90.7%