Base-VxFS-50 B.05.00.01 through B.05.00.02, Base-VxFS-501 B.05.01.0 through B.05.01.03, and Base-VxFS-51 B.05.10.00 through B.05.10.02 on HPE HP-UX 11iv3 with VxFS 5.0, VxFS 5.0.1, and VxFS 5.1SP1 mishandles ACL inheritance for default:class: entries, default:other: entries, and default:user: entries, which allows local users to bypass intended access restrictions by leveraging the configuration of a parent directory.