Paper/Archive/CVE-2026-83399

CVE-2026-83399

Oracle Corporation Oracle WebLogic Server — Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core).

EPSS 0.5%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 42.5.425 × 208.5 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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).

Affected

ProductAffectedFixed inSource

Oracle WebLogic Server12.2.1.4.0–CNA

Oracle WebLogic Server14.1.1.0.0–CNA

Oracle WebLogic Server14.1.2.0.0–CNA

Oracle WebLogic Server15.1.1.0.0–CNA

Scores by source

oracle (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisoryoracle.com/security-alerts/cpuoct2026.html