CVE-2026-83021: Critical severity Oracle Oracle WebLogic Server vulnerability
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Container). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. While the vulnerability is in Oracle WebLogic Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed?
Oracle WebLogic Server deployments running supported affected versions 12.2.1.4.0, 14.1.1.0.0, or 14.1.2.0.0 are exposed when an attacker can reach them over HTTP.
Does exploitation require credentials or user interaction?
No. The vulnerability is described as easily exploitable by an unauthenticated attacker with network access via HTTP, with no user interaction required.
What is the potential impact of a successful attack?
A successful attack can result in takeover of Oracle WebLogic Server, with high confidentiality, integrity, and availability impact. Because the vulnerability has scope change, attacks may also significantly affect additional products.