Oracle Unified Directory 12.2.1.4.0/14.1.2.1.0 OUD Core denial of service

Summaryinfo

A vulnerability, which was classified as problematic, was found in Oracle Unified Directory 12.2.1.4.0/14.1.2.1.0. This issue affects some unknown processing of the component OUD Core. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2026-46776. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle Unified Directory 12.2.1.4.0/14.1.2.1.0. It has been declared as critical. This vulnerability affects some unknown functionality of the component OUD Core. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect integrity, and availability. CVE summarizes:

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 creation, deletion or modification access to critical data or all Oracle Unified Directory accessible data as well as unauthorized read access to a subset of Oracle Unified Directory accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Unified Directory. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L).

The advisory is shared for download at oracle.com. This vulnerability was named CVE-2026-46776 since 05/18/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/17/2026). The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Directory Service Software

Vendor

• Oracle

Name

• Unified Directory

Version

• 12.2.1.4.0
• 14.1.2.1.0

License

• commercial

Website

• Vendor: https://www.oracle.com

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