Vulnerability in the Oracle Fusion Middleware component of Oracle Fusion Middleware (subcomponent: Oracle Notification Service). Supported versions that are affected are 12.2.1.2 and 12.2.1.3. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle Fusion Middleware. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Fusion Middleware accessible data. CVSS 3.0 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).