CVE-2026-60425

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Unified Directory

Publication date: 2026-07-21

Last updated on: 2026-07-28

Assigner: Oracle

Description

Vulnerability in the Oracle Unified Directory product of Oracle Fusion Middleware (component: OUD Core). 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 Unified Directory. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Unified Directory. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-21

Last Modified

2026-07-28

Generated

2026-08-11

AI Q&A

2026-07-22

EPSS Evaluated

2026-08-09

NVD

CVE-2026-60425

EUVD

EUVD-2026-46823

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	unified_directory	12.2.1.4.0
oracle	unified_directory	14.1.2.1.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a denial-of-service (DoS) vulnerability in Oracle Unified Directory (OUD) versions 12.2.1.4.0 and 14.1.2.1.0. An unauthenticated attacker can exploit it remotely via LDAP to crash the OUD service repeatedly, causing complete unavailability.

Detection Guidance

To detect this vulnerability, check if your Oracle Unified Directory instances are running versions 12.2.1.4.0 or 14.1.2.1.0. Verify network exposure to LDAP ports (default 389 or 636) and monitor for crashes or hangs in the service.

Impact Analysis

If you use affected OUD versions, an attacker could disrupt directory services, making them unavailable. This could prevent users from accessing authentication, authorization, or directory lookups, leading to service outages.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in Oracle Unified Directory, disrupting availability. For GDPR, this could impact data processing operations requiring high availability. For HIPAA, it may affect access to critical health information systems. Compliance may be compromised if systems fail to maintain required uptime or data accessibility.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update (CPU) for Oracle Unified Directory as soon as possible to address the vulnerability. Monitor Oracle's security advisories for updates and patches.

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