Vulnerability in the RDBMS Security component of Oracle Database Server. Supported versions that are affected are 11.2.0.4, 12.1.0.2 and 12.2.0.1. Easily exploitable vulnerability allows high privileged attacker having Create User privilege with logon to the infrastructure where RDBMS Security executes to compromise RDBMS Security. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of RDBMS Security accessible data. CVSS 3.0 Base Score 2.3 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N).