---
id: CVE-2026-83021
title: >-
  Vulnerability in the Oracle WebLogic Server product of Oracle Fusion
  Middleware (component: Web Container)
summary: >-
  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 unauthe…
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-287
  - CWE-306
vendor: oracle
product: weblogic_server
affected:
  - weblogic_server = 12.2.1.4.0
  - weblogic_server = 14.1.1.0.0
  - weblogic_server = 14.1.2.0.0
published: '2026-09-15'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T15:14:32.380'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83021'
references:
  - url: 'https://www.oracle.com/security-alerts/cspusep2026.html'
    label: secalert_us@oracle.com
tags:
  - nvd
  - cve.org
epss: 0.00508
epssPercentile: 0.43133
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-16T00:00:00+00:00'
ingestedAt: '2026-09-15T20:44:02.429Z'
---

## Overview

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

- `weblogic_server = 12.2.1.4.0`
- `weblogic_server = 14.1.1.0.0`
- `weblogic_server = 14.1.2.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.