nCipher Security Advisory No. 8 – Versions 1.3.12, 1.5.18, and 1.6.18 of the payShield SPP library may return Status_OK regardless of what the real reply status should be.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/32508/nCipher08.txt
Source: https://packetstormsecurity.com/files/32508/nCipher08.txt.html