The SPP_VerifyPVV function in nCipher payShield SPP library 1.3.12, 1.5.18 and 1.6.18 returns a Status_OK value even if the HSM returns a different status code, which could cause applications to make incorrect security-critical decisions, e.g. by accepting an invalid PIN number.

nCipher firmware before V10, as used by (1) nShield, (2) nForce, (3) netHSM, (4) payShield, (5) SecureDB, (6) DSE200 Document Sealing Engine, (7) Time Source Master Clock (TSMC), and possibly other products, contains certain options that were only intended for testing and not production, which might allow remote attackers to obtain information about encryption keys and crack those keys with less effort than brute force.