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Unified DirectoryApplication · Oracle

CVE-2026-46773

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 LDAP 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 · moderate confidence

Critical unauthenticated remote code execution vulnerability in Oracle Unified Directory (OUD) Core component. The flaw is exploitable over LDAP protocol without any authentication, allowing a remote attacker to gain full system control including complete confidentiality, integrity, and availability compromise.

MitigationApply Oracle Critical Patch Update addressing CVE-2026-46773 for affected versions 12.2.1.4.0 and 14.1.2.1.0. If patching is immediately infeasible, restrict LDAP network access to trusted sources only via firewall or network segmentation.

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. Verify Oracle Unified Directory installation
    Locate OUD installation by checking for the 'oud' binary or Oracle Unified Directory directories (commonly under $ORACLE_HOME/oud or /opt/oracle/oud). Check running processes for 'OUD' or 'Unified Directory' processes.
    Affected if Oracle Unified Directory is not installed on the system.
  2. Determine installed OUD version
    Run the OUD version command: dsadm --version or oud-version (depending on installation), or check the OUD installation directory for a version file. Common locations include <OUD_HOME>/OUD/bin with --version flag.
    Affected if Installed version matches exactly 12.2.1.4.0 or 14.1.2.1.0.
  3. Confirm LDAP protocol listener is enabled
    Check OUD configuration for LDAP port bindings. Review dsconfig list-connection-handlers or check LDAP configuration files (likely under <OUD_HOME>/OUD/config). Look for LDAP connection handler in enabled state.
    Affected if LDAP connection handler is enabled and listening on a network port.
  4. Assess LDAP network exposure
    Review network configuration to determine if LDAP port (default 389 or custom) is exposed to untrusted network sources. Check firewall rules, iptables, or network ACLs restricting LDAP access. Verify if LDAP is bound to 0.0.0.0 (all interfaces) vs 127.0.0.1 (local only).
    Affected if LDAP port is accessible from untrusted network sources (not restricted to localhost or trusted IP ranges).

System is affected only if Oracle Unified Directory is installed with exact version 12.2.1.4.0 or 14.1.2.1.0 AND the LDAP protocol listener is enabled and accessible from the network.

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 Critical Patch Update addressing CVE-2026-46773 for affected versions 12.2.1.4.0 and 14.1.2.1.0. If patching is immediately infeasible, restrict LDAP network access to trusted sources only via firewall or network segmentation.

Fix this in Unified Directory Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,480
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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-2026-46773 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
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  • Version or environment caveats, and links to real fixes
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