HP OpenVMS Guide to System Security: OpenVMS Version 8.4 > Appendix A Assigning Privileges

UPGRADE Privilege (All)

The UPGRADE privilege lets a process manipulate mandatory access controls. The privilege allows a process to write to an object of higher integrity, in violation of the Biba confinement (*) property. This privilege is reserved for enhanced security products like SEVMS. [8]

[8] Support for SEVMS software has ended.