CVE-2026-83412

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Coherence

Publication date: 2026-09-15

Last updated on: 2026-09-22

Assigner: Oracle

Description

Vulnerability in the Oracle Coherence 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 low privileged attacker with network access via TCP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Coherence accessible data as well as unauthorized access to critical data or complete access to all Oracle Coherence accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-22

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83412

EUVD

EUVD-2026-79713

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	coherence	12.2.1.4.0
oracle	coherence	14.1.1.0.0
oracle	coherence	14.1.2.0.0
oracle	coherence	15.1.1.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Coherence, a middleware product. It allows a low-privileged attacker with network access to exploit it via TCP. Successful exploitation can lead to unauthorized data creation, deletion, or modification, as well as unauthorized access to critical data.

Detection Guidance

Detecting this vulnerability requires checking for vulnerable versions of Oracle Coherence. Verify installed versions using commands like 'java -jar coherence.jar -version' or checking application server logs for Oracle Coherence components. Network scanning tools can identify open TCP ports associated with Oracle Coherence services.

Impact Analysis

An attacker could gain unauthorized access to sensitive data, modify or delete critical information, or create new unauthorized data within Oracle Coherence. This could lead to data breaches, loss of data integrity, or unauthorized system access.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements. Non-compliance risks include legal penalties, fines, and reputational damage.

Mitigation Strategies

Apply the latest Oracle Coherence patches immediately. Restrict network access to Oracle Coherence ports via firewalls. Review and tighten user permissions to minimize privileges. Monitor for suspicious activity in Oracle Coherence logs.

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