CVE-2026-83062

Analyzed Analyzed - Analysis Complete

Oracle Internet Directory LDAP Server Authentication Bypass

Publication date: 2026-09-15

Last updated on: 2026-09-22

Assigner: Oracle

Description

Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via LDAP to compromise Oracle Internet Directory. Successful attacks of this vulnerability can result in takeover of Oracle Internet Directory. 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).

CVSS Scores

EPSS Scores

Probability:
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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-2026-83062

EUVD

EUVD-2026-79390

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	internet_directory	12.2.1.4.0
oracle	internet_directory	14.1.2.1.0

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 Internet Directory affecting versions 12.2.1.4.0 and 14.1.2.1.0. It allows an unauthenticated attacker with network access via LDAP to compromise the system and potentially take it over. The vulnerability has a CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability.

Detection Guidance

This vulnerability affects Oracle Internet Directory versions 12.2.1.4.0 and 14.1.2.1.0. Detection requires checking the installed version of Oracle Internet Directory. Use commands like 'ldapsearch -h <host> -p <port> -s base -b "" (objectclass=*)' to verify the version. Ensure the system is updated to a patched version if vulnerable.

Impact Analysis

If you use the affected Oracle Internet Directory versions, an attacker could exploit this to gain full control of your Oracle Internet Directory instance. This could lead to unauthorized access to sensitive data, modification or deletion of critical information, and disruption of services.

Compliance Impact

This vulnerability could lead to unauthorized access or loss of data, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using the affected versions may face legal penalties, reputational damage, and loss of customer trust due to potential data breaches.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update for Oracle Internet Directory immediately. Restrict network access to LDAP ports (default 389/636) using firewalls. Monitor for unusual LDAP traffic or unauthorized access attempts. Disable LDAP services if not required.

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