EUVD-2026-79389
GHSA-5hqm-fgh7-8r5j
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description confirms easily exploitable, unauthenticated network LDAP attack (AV:N/AC:L/PR:N/UI:N) yielding full takeover of the directory itself (C:H/I:H/A:H, S:U as no cross-component scope change stated).
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 attackers with network access to the OID LDAP Server component can fully compromise Oracle Internet Directory versions 12.2.1.4.0 and 14.1.2.1.0, achieving complete loss of confidentiality, integrity, and availability of the directory service (CVSS 3.1 base score 9.8). Because the flaw is an improper authentication weakness (CWE-287) reachable over LDAP with no credentials, no user interaction, and no special configuration - Oracle itself characterizes it as 'easily exploitable' - any directory deployment whose LDAP listener is exposed to an untrusted network is directly at risk of takeover. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation over the network against the OID LDAP Server component of Oracle Internet Directory (versions 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 high-priority vulnerability. … 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 the vendor advisory (https://www.oracle.com/security-alerts/cspusep2026.html) for Oracle Internet Directory 12.2.1.4.0 and 14.1.2.1.0; patch availability is established through Oracle's security-alert cycle, but the advisory does not publish a discrete fix build number in the data provided, so confirm the exact patched release for your OID branch before scheduling maintenance. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, enumerate every Oracle Internet Directory instance in the estate and identify which are running 12.2.1.4.0 or 14.1.2.1.0; for each affected instance, determine whether the OID LDAP listener is reachable from untrusted networks (internet, partner links, flat user VLANs) and immediately block that inbound access at the perimeter and host firewall so only trusted administrative ranges can reach the listener, since no vendor-released patch has been identified at time of analysis. …
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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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