Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessObtain low-privilege LDAP credential
-
DeliveryBind to OUD Core over network
-
ExploitExploit access-control flaw
-
ExecutionRead all directory data, modify some
-
ImpactPivot via scope change to downstream products
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. |
| Exploitation Conditions | Exploitation requires network access to the Oracle Unified Directory LDAP interface and a valid low-privileged credential (CVSS PR:L, so this is an authenticated attack - the attacker must already be able to bind to the directory with at least a low-privilege account); no user interaction is needed (UI:N) and attack complexity is low (AC:L). It applies only to Oracle Unified Directory 12.2.1.4.0 and 14.1.2.1.0 running the OUD Core component. The primary limiting factor is the requirement for an existing low-privilege LDAP account, which prevents fully anonymous/unauthenticated exploitation; the primary amplifier is the scope change (S:C), meaning successful attacks can extend beyond OUD into products that trust it. |
| Impact | The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N, score 8.5) indicates a network-reachable, low-complexity, no-user-interaction attack requiring only low privileges, with high confidentiality impact, low integrity impact, no availability impact, and a scope change - a strong profile for a directory service other products depend on. No EPSS score was provided in the input, and the CVE is not listed in CISA KEV, so there is no evidence of active exploitation; likewise no public POC was supplied, so exploitation is currently theoretical. The dominant risk driver is not exploit availability but blast radius: an attacker already holding any low-privilege LDAP credential could escalate to reading all directory data and partially tampering with it, and the scope change means downstream trust relationships are also at risk. This is a genuine priority for organizations running OUD as shared identity infrastructure, though the PR:L requirement (a valid low-privilege account is needed) meaningfully limits opportunistic mass exploitation compared to a fully unauthenticated flaw. |
| Exploit ScenarioDerived | An attacker who has obtained any low-privileged LDAP account, such as a service or application bind credential, connects to the Oracle Unified Directory listener over the network and, exploiting the OUD Core flaw, escalates access to read all directory-stored data such as credentials, group memberships, and identity attributes, then makes limited unauthorized modifications. Because OUD is a scope-changing identity backbone, the attacker leverages that trust to impact additional Oracle products that rely on the directory. No public exploit code has been identified at time of analysis. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Jul 22, 2026
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.
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.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
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.
Know when Unified Directory gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
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
DescriptionCVE.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).
Executive ViewAI
Oracle Unified Directory (OUD) versions 12.2.1.4.0 and 14.1.2.1.0 contain a privilege escalation vulnerability (CVSS 8.5) that allows low-privileged attackers with LDAP access to read sensitive identity data and modify restricted directory information across connected enterprise systems. This directly compromises organizational identity infrastructure and could enable unauthorized access to user credentials and permissions. Immediate network-based mitigations are critical, as no vendor patch is currently available.
No vendor-released patch identified at time of analysis. Interim mitigations: restrict LDAP network access via firewall rules and segmentation; audit and minimize low-privileged LDAP account permissions; enable comprehensive logging and real-time alerting for directory access and modifications; maintain current inventory of OUD-dependent systems for rapid incident response.
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.
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
EUVD-2026-46824
GHSA-j2p4-hr6w-pqmq
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB