EUVD-2026-61444
GHSA-m6m3-m34v-788q
Severity by source
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Network LDAP access with low-privilege authentication required; high complexity per Oracle disclosure; scope change reflects OUD's role as Fusion Middleware identity backbone.
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. Difficult to exploit 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 takeover of Oracle Unified Directory. CVSS 3.1 Base Score 8.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).
AnalysisAI
Full takeover of Oracle Unified Directory 12.2.1.4.0 and 14.1.2.1.0 is achievable by a low-privileged network attacker via LDAP, resulting in complete compromise of confidentiality, integrity, and availability of the directory service. The CVSS Scope:Changed indicator confirms that successful exploitation can cascade into additional Oracle Fusion Middleware components that depend on OUD for authentication or directory services, amplifying the blast radius beyond the directory itself. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privileged account capable of authenticating to Oracle Unified Directory over LDAP (PR:L) - any valid LDAP bind account, including application service accounts or standard user accounts, satisfies this requirement. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 8.5 reflects a serious but non-trivial attack: AV:N confirms network reachability via LDAP, but AC:H indicates the attacker must overcome significant complexity - likely requiring specific directory state, precise sequencing of LDAP operations, or timing constraints whose exact nature Oracle has not disclosed. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply Oracle's Critical Security Patch Update for August 2026, detailed at https://www.oracle.com/security-alerts/cspuaug2026.html - this is the authoritative Oracle remediation channel, though no specific fixed version number was included in the provided data and the exact patched build must be confirmed via the CPU documentation directly. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all OUD 12.2.1.4.0 and 14.1.2.1.0 instances across the environment using network scanning and asset inventory tools; immediately restrict LDAP network access via firewall rules to only authorized administrators and dependent Oracle Fusion components, using principle of least privilege. …
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More in Unified Directory
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Full compromise of Oracle Unified Directory (OUD Core) is possible when a low-privileged attacker with network access se
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
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