Last month we released an important ColdFusion security hotfix which, unfortunately, created issues for some users. The hotfix has since been been updated, and the Security Bulletin now contains the following text:
Adobe has received a few issues with the Security Hot fix released on February 8, 2011. For information on these issues, plus updated hotfixes containing fixes to the issues, please revisit the technote link above. All users should re-apply the hotfixes, even if they have applied them already.