EUVD-2026-79388
GHSA-5g93-ggg8-79h5
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description states unauthenticated network LDAP access with low complexity yielding full takeover (C/I/A High); no scope change is claimed, so S:U.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
3DescriptionCVE.org
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 unauthenticated attacker with network access via LDAP to compromise Oracle Internet Directory. Successful attacks of this vulnerability can result in takeover of Oracle Internet Directory. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Unauthenticated remote takeover of Oracle Internet Directory is achievable through its OID LDAP Server component in versions 12.2.1.4.0 and 14.1.2.1.0. The flaw is an improper-authentication weakness (CWE-287) rated CVSS 3.1 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), meaning an attacker who can reach the LDAP listener needs no credentials, no user interaction, and no non-default configuration to gain full control of confidentiality, integrity, and availability of the directory service. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation over the LDAP protocol against the OID LDAP Server component of Oracle Internet Directory 12.2.1.4.0 and 14.1.2.1.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine top-tier priority. … 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 | No vendor-released patch version is specified in the supplied intelligence, so the primary action is to obtain and apply the applicable Oracle Critical Security Patch Update for Oracle Internet Directory 12.2.1.4.0 and 14.1.2.1.0 from the Oracle Security Alert at https://www.oracle.com/security-alerts/cspusep2026.html and verify the installed OID version afterwards. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every Oracle Internet Directory deployment to identify instances running 12.2.1.4.0 or 14.1.2.1.0, verify whether LDAP ports 389 and 636 are reachable from anything other than trusted internal or management networks, and where that exposure exists, block the ports at the perimeter firewall and tighten host-level access controls while enabling alerting on anomalous bind and directory-search activity. …
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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