Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jul 22, 2026
Privilege escalation and data compromise in Oracle Unified Directory 14.1.2.1.0 (OUD Core) lets a low-privileged, authenticated attacker with LDAP network access read, create, modify or delete all OUD-accessible data and cause a partial denial of service. Oracle rates it CVSS 9.9 with a scope change, meaning exploitation can significantly impact additional products beyond the directory itself. No public exploit identified at time of analysis and it is not listed in CISA KEV, but the near-maximum score and low attack complexity make it a top patching priority.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Primary rating from Vendor (oracle) · only source for this CVE.
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Oracle Unified Directory product of Oracle Fusion Middleware (component: OUD Core). The supported version that is affected is 14.1.2.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via LDAP to compromise Oracle Unified Directory. While the vulnerability is in Oracle Unified Directory, attacks may significantly impact additional products (scope change). 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 access to critical data or complete access to all 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 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L).
Executive ViewAI
Oracle Unified Directory 14.1.2.1.0 exposes organizations to complete data compromise through a critical privilege escalation vulnerability affecting any authenticated LDAP user. Attackers can extract all directory data, create unauthorized accounts, and modify access controls while maintaining low visibility. Any enterprise relying on OUD for identity and authentication services faces immediate risk of unauthorized access, data breach, and lateral movement to dependent systems.
Within 24 hours: immediately restrict OUD LDAP network access to trusted administrative networks via firewall rules, enable comprehensive logging of all directory modifications and queries, and audit current low-privilege account permissions for removal of unnecessary directory access. Within 7 days: implement LDAP binding restrictions limiting directory access to essential applications only, deploy alerting on suspicious account creation or privilege modifications, and conduct forensic review of directory logs for unauthorized changes or anomalies. Within 30 days: continuously monitor Oracle security advisories for patch availability; concurrently develop and test a contingency migration plan to an alternative directory platform (such as Active Directory or FreeIPA) with parallel deployment capability if no patch is released within 60 days.
No vendor-released patch identified at time of analysis. Interim mitigations include: restrict OUD network access via firewall segmentation; implement LDAP binding enforcement to approved applications only; deploy comprehensive logging and real-time alerting for directory modifications; reduce low-privilege LDAP permissions to least-privilege principle; monitor for unusual query patterns and bulk data transfers; maintain current backups of directory data isolated from production; prepare accelerated testing and deployment procedures for directory platform replacement or upgrade if patch timeline extends beyond vendor guidance.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
More in Unified Directory
View allComplete takeover of Oracle Unified Directory (OUD) is possible when an unauthenticated remote attacker sends crafted tr
Privilege escalation to full takeover in Oracle Unified Directory (OUD Core) 12.2.1.4.0 and 14.1.2.1.0 lets a low-privil
Full takeover of Oracle Unified Directory is possible in the OUD Core component of Oracle Fusion Middleware versions 12.
Complete takeover of Oracle Unified Directory (OUD Core) is achievable by an unauthenticated, network-based attacker com
Full compromise of Oracle Unified Directory is possible in the OUD Core component of Oracle Fusion Middleware versions 1
Full compromise of Oracle Unified Directory (OUD Core component of Oracle Fusion Middleware) is possible when a low-priv
Full compromise of Oracle Unified Directory (OUD Core) is possible when a low-privileged attacker with network access se
Takeover of Oracle Unified Directory is possible in the OUD Core component of Oracle Fusion Middleware versions 12.2.1.4
Data tampering and denial-of-service in Oracle Unified Directory (OUD Core component) let a high-privileged, network-adj
Scope-changing compromise of Oracle Unified Directory (OUD Core) 12.2.1.4.0 and 14.1.2.1.0 lets a remote, unauthenticate
Unauthorized data access in Oracle Unified Directory (OUD Core) 12.2.1.4.0 and 14.1.2.1.0 lets a remote unauthenticated
Full takeover of Oracle Unified Directory (OUD) 12.2.1.4.0 and 14.1.2.1.0 is achievable by a low-privileged attacker wit
EUVD-2026-46820
GHSA-r9q8-hj9f-3v76
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB