Unable to Use X.509 Certificate Authentication with ColdFusion
ColdFusion Server does not support X.509 client certificate authentication. This has been logged as bug 22493. At this time, there is no fix available for this issue. When a fix becomes available, either through a new version, service pack, or patch, it will be noted in this article:
Unable to Use X.509 Certificate Authentication with ColdFusion (Updated April 20, 2001)