EUVD-2026-79383
GHSA-vj32-5gf7-7mv4
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network LDAP with low complexity, requires a low-privilege account (PR:L), and full takeover of a central directory cascades to dependent products (S:C, C/I/A:H).
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionNVD
Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). 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 Internet Directory. While the vulnerability is in Oracle Internet Directory, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Internet 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:H).
AnalysisAI
Low-privileged authenticated LDAP access to Oracle Internet Directory 12.2.1.4.0 or 14.1.2.1.0 can be escalated into full takeover of the directory service, with a scope change that lets a compromise propagate into other Oracle Fusion Middleware components and identity-dependent applications. Oracle rated this 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H), meaning a remote attacker only needs a valid low-privilege directory credential or authenticated LDAP session - no user interaction - to fully compromise confidentiality, integrity, and availability of OID. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires network access to the Oracle Internet Directory LDAP Server (the OID LDAP Server component) and a low-privileged authenticated context (PR:L), so the attacker needs some valid credential or authenticated LDAP session rather than fully anonymous access. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority vulnerability, not a high-CVSS-but-low-real-risk case. … 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 the Oracle Critical Security Patch Update referenced in https://www.oracle.com/security-alerts/cspusep2026.html for Oracle Internet Directory: patch available per vendor advisory, and administrators should deploy the update for their exact OID release lines (12.2.1.4.0 and 14.1.2.1.0) as identified by the advisory rather than assuming a generic patch level. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm whether Oracle Internet Directory 12.2.1.4.0 or 14.1.2.1.0 is deployed anywhere in the estate, inventory which applications and Fusion Middleware components trust it for identity, and restrict LDAP exposure at the network layer so only required hosts and service accounts can reach it; also verify and minimize the set of low-privilege directory accounts and rotate any that are stale or shared. …
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