An authentication bypass vulnerability in the Trend Micro Endpoint Encryption PolicyServer could allow an attacker to access key methods as an admin user and modify product configurations on affected installations.
The code uses deprecated or obsolete functions, which suggests that the code has not been actively reviewed or maintained.
As programming languages evolve, functions occasionally become obsolete due to:
Functions that are removed are usually replaced by newer counterparts that perform the same task in some different and hopefully improved way.