Unified DirectoryApplication · Oracle

CVE-2026-46774

CRITICAL · 9.8 CVSS v3.1 Published 2026-06-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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 RMI to compromise Oracle Unified Directory. Successful attacks of this vulnerability can result in takeover of Oracle Unified 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).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Critical RMI-based vulnerability in Oracle Unified Directory's OUD Core component allows unauthenticated remote attackers to achieve complete system compromise (full confidentiality, integrity, and availability impact) via network access. The vulnerability affects versions 12.2.1.4.0 and 14.1.2.1.0 and is easily exploitable without authentication.

MitigationApply Oracle's security patches for the affected versions (12.2.1.4.0 and 14.1.2.1.0); as an interim control, restrict network access to RMI ports and implement network segmentation to limit exposure.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Unified DirectoryApplication
Affected:= 12.2.1.4.0= 14.1.2.1.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Oracle Unified Directory is installed
    Look for Oracle Unified Directory installation directories or check running processes for OUD components (such as opendj, oud processes)
    Affected if OUD is found running on the system
  2. Check the installed OUD version
    Use the OUD version command (typically 'oud version' in the OUD bin directory or check Oracle inventory files) and compare to 12.2.1.4.0 or 14.1.2.1.0
    Affected if The installed version is exactly 12.2.1.4.0 or 14.1.2.1.0
  3. Identify exposed RMI ports
    Review OUD configuration for RMI registry settings and use 'netstat' or 'ss' commands to find listening RMI ports (typically port 1389, 1636, or custom RMI ports as configured)
    Affected if RMI ports are open and listening on network interfaces accessible to attackers
  4. Verify network accessibility of RMI services
    Use 'nmap' or 'nc' to test connectivity to identified RMI ports from untrusted networks, or review firewall rules and ACLs governing OUD network access
    Affected if RMI ports are reachable from network segments that contain untrusted or external systems

You are affected if Oracle Unified Directory version 12.2.1.4.0 or 14.1.2.1.0 is installed AND its RMI ports are network-accessible to untrusted attackers.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Oracle's security patches for the affected versions (12.2.1.4.0 and 14.1.2.1.0); as an interim control, restrict network access to RMI ports and implement network segmentation to limit exposure.

Fix this in Unified Directory Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-46774 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data