CVE-2026-83020

Received Received - Intake

Oracle Platform Security for Java Remote Code Execution

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Oracle

Description

Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Platform Security for Java. While the vulnerability is in Oracle Platform Security for Java, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Platform Security for Java. 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).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-15

Last Modified

2026-09-15

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83020

EUVD

EUVD-2026-79348

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	platform_security_for_java	12.2.1.4.0
oracle	platform_security_for_java	14.1.2.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This is a critical vulnerability in Oracle Platform Security for Java, part of Oracle Fusion Middleware. It affects versions 12.2.1.4.0 and 14.1.2.0.0. An unauthenticated attacker can exploit it remotely via HTTP to take over the system. The vulnerability has a maximum CVSS score of 10.0, indicating severe impact on confidentiality, integrity, and availability.

Detection Guidance

This vulnerability can be detected by checking for the affected Oracle Platform Security for Java versions (12.2.1.4.0 and 14.1.2.0.0) on your system. Review installed Oracle Fusion Middleware components and verify if the Centralized Thirdparty Jars component is present. Check network logs for unusual HTTP traffic targeting Oracle Platform Security for Java.

Impact Analysis

An attacker could gain full control of Oracle Platform Security for Java, potentially leading to data breaches, unauthorized access to sensitive information, or disruption of services. Since this component interacts with other products, the impact may extend beyond the immediate system.

Compliance Impact

This vulnerability could lead to unauthorized access or loss of sensitive data, violating GDPR's data protection requirements and HIPAA's security rules. Organizations using affected Oracle products may face compliance violations, legal penalties, and reputational damage.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update (CPU) for Oracle Fusion Middleware, specifically addressing CVE-2026-83020. Check Oracle's security advisories for patch availability and follow their instructions to update affected versions 12.2.1.4.0 and 14.1.2.0.0.

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