EUVD-2026-61459
GHSA-64f8-9qf3-5679
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Network LDAP vector with low-privilege requirement and high complexity aligns with the described difficult-to-exploit bypass; no availability impact confirmed.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
1DescriptionCVE.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. 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. CVSS 3.1 Base Score 6.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Oracle Unified Directory versions 12.2.1.4.0 and 14.1.2.1.0 expose a network-exploitable authentication bypass over LDAP that grants low-privileged attackers full read and write control over directory data. Despite a moderate CVSS base score of 6.8 driven down by high attack complexity (AC:H), successful exploitation yields complete confidentiality and integrity compromise of all OUD-accessible data - a severe outcome for identity and directory infrastructure. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must possess a low-privileged authenticated account within Oracle Unified Directory with the ability to initiate LDAP connections to the server (port 389 or 636). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.8 (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N) reflects a network-reachable flaw that nonetheless requires high attack complexity - meaning exploitation is not straightforward and likely depends on specific conditions such as race conditions, particular LDAP operation sequences, or precise server state. … 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 Patch Update for August 2026, available at https://www.oracle.com/security-alerts/cspuaug2026.html, which addresses this vulnerability for both affected release trains (12.2.1.4.0 and 14.1.2.1.0). … Detailed patch versions, workarounds, and compensating controls in full report. |
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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.
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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
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