# CVE-2026-60436: Oracle Unified Directory denial of service in OUD Core

Source: https://junglewise.ai/threats/cve-2026-60436-oracle-unified-directory-denial-of-service-in-oud-core  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-21  
License: CC BY 4.0 with a link back

CVE-2026-60436 · Severity: high · CVSS 7.5 · Published 2026-07-21

Oracle Unified Directory, a directory service used for managing identity and access data, is vulnerable to a denial-of-service attack. An unauthenticated attacker can remotely cause the system to hang or crash repeatedly. This can disrupt business operations by preventing users and applications from authenticating or accessing directory information.

Technologies: [Oracle Unified Directory](https://junglewise.ai/threats/technologies/unified-directory). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-60436 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-60436 being exploited in the wild.

**How severe is CVE-2026-60436?** High severity, with a CVSS score of 7.5, published 21 July 2026.

**Which products and versions are affected?** Oracle Unified Directory 12.2.1.4.0, 14.1.2.1.0.

**Is there a fix for CVE-2026-60436?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-60436 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-60436?** Check whether you run Oracle Unified Directory at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability in the OUD Core component of Oracle Unified Directory allows for a denial-of-service (DoS) attack. The flaw is easily exploitable by an unauthenticated attacker with network access via the LDAP protocol. Successful exploitation results in a frequently repeatable crash or a system hang, leading to a complete loss of availability. The vulnerability affects versions 12.2.1.4.0 and 14.1.2.1.0. Users are advised to refer to the Oracle Critical Patch Update for July 2026 for remediation steps.

## Affected products

- Oracle Unified Directory 12.2.1.4.0, 14.1.2.1.0

## Timeline

- 2026-07-21: disclosed
- 2026-07-21: advisory

## References

- [https://www.oracle.com/security-alerts/cpujul2026.html](https://www.oracle.com/security-alerts/cpujul2026.html)

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