Improper configuration in system firmware for EDK II may allow unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us
https://edk2-docs.gitbooks.io/security-advisory/content/opal-blocksid-setting-disabled-after-s3.html