CVE-2026-83399 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-83399?
CVE-2026-83399 is a critical vulnerability in Oracle WebLogic Server, published on 20 Oct 2026.
Official description
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Which versions are affected by CVE-2026-83399?
How do I fix CVE-2026-83399?
No fix has been published for CVE-2026-83399 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-83399 being exploited?
There is no known exploitation of CVE-2026-83399 in the wild and no public exploit code.
Sources
Also known as GHSA-xphr-m446-69p7.