Denial of Service in Oracle Unified Directory

Publication date: 2026-07-21

Last updated on: 2026-07-21

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

2026-07-21

Generated

2026-07-22

AI Q&A

2026-07-22

EPSS Evaluated

N/A

NVD

CVE-2026-60425

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-UNKNOWN

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.

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.

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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