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.
Exploitability
AV:NAC:LAu:NImpact
C:PI:PA:P7.5/AV:N/AC:L/Au:N/C:P/I:P/A:P