Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Network LDAP reach with low complexity and a required low-privilege bind gives AV:N/AC:L/PR:L; scope change plus high read, low write, no availability yields S:C/C:H/I:L/A:N.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
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 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 access to critical data or complete access to all Oracle Unified Directory accessible data as well as unauthorized update, insert or delete access to some of Oracle Unified Directory accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
AnalysisAI
Elevation-of-scope compromise in Oracle Unified Directory (Fusion Middleware, OUD Core component) versions 12.2.1.4.0 and 14.1.2.1.0 lets an authenticated low-privileged attacker with LDAP network access read all OUD-accessible data and modify some of it, with a scope change that can significantly impact additional connected products. Oracle rates it CVSS 3.1 8.5, and the source intelligence tags it as an authentication-bypass-class issue. There is no public exploit identified at time of analysis and it is not in CISA KEV, but the low attack complexity and scope change make it a meaningful patch priority for Oracle-integrated identity infrastructure.
Technical ContextAI
Oracle Unified Directory is Oracle's LDAPv3-compliant, all-in-one directory service (directory server, proxy, virtual directory, and storage/synchronization) shipped as part of Oracle Fusion Middleware and frequently used as a central identity store fronting products such as Oracle Access Manager and Fusion Applications. The flaw resides in the OUD Core component and is reached over the LDAP protocol. No CWE was assigned by NVD (CWE: N/A), but the source-provided 'Authentication Bypass' tag combined with the confidentiality-and-integrity impact profile points to a flaw in access-control or identity-enforcement logic within the directory engine rather than a memory-safety bug. Because OUD acts as a shared identity backbone, the CVSS scope change (S:C) reflects that a directory compromise can cascade into downstream products that trust it for authentication and authorization data.
RemediationAI
Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (patch available per Oracle CPU advisory: https://www.oracle.com/security-alerts/cpujul2026.html) for the affected Oracle Unified Directory 12.2.1.4.0 and 14.1.2.1.0 releases; an exact fixed build number was not provided in the input, so consult the CPU patch matrix for the correct patch for your version. Until patching is complete, reduce exposure by restricting network access to the OUD LDAP/LDAPS listener so that only trusted application hosts and administrators can reach it via network ACLs or firewall rules, accepting that this may break clients connecting from unexpected hosts. Additionally, tighten and audit low-privilege directory accounts and rotate any credentials that could serve as the required foothold, and increase monitoring of LDAP bind, search, and modify activity for anomalous patterns; these controls raise the bar but do not substitute for the vendor patch given the scope-change impact on downstream products.
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.
Privilege escalation and data compromise in Oracle Unified Directory 14.1.2.1.0 (OUD Core) lets a low-privileged, authen
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
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-46824
GHSA-j2p4-hr6w-pqmq