nCipher HSM before 2.22.6, when generating a Diffie-Hellman public/private key pair without any specified DiscreteLogGroup parameters, chooses random parameters that could allow an attacker to crack the private key in significantly less time than a brute force attack.

swinit in nCipher does not properly disable the Operator Card Set recovery feature even when explicitly disabled by the user, which could allow attackers to gain access to application keys.