CVE-2020-14820: Oracle WebLogic Server

High severity, CVSS 7.5. EPSS: 4.5% chance of exploitation in the next 30 days.

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Affected products

• Oracle WebLogic Server: version 10.3.6.0.0 only; version 12.1.3.0.0 only; version 12.2.1.3.0 only; version 12.2.1.4.0 only; version 14.1.1.0.0 only

Published 2020-10-21. Last modified 2026-06-17.