EUVD-2026-79382
GHSA-62q3-584q-3xgr
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 (AV:N/PR:N/UI:N), easily exploitable (AC:L), and full takeover of OID (C:H/I:H/A:H) with no cross-component scope change described (S:U).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.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
Authentication bypass in the OID LDAP Server component of Oracle Internet Directory 12.2.1.4.0 and 14.1.2.1.0 allows a remote, unauthenticated attacker with network access to the LDAP listener to take full control of the directory service, with high impact to confidentiality, integrity, and availability (CVSS 3.1 base 9.8, vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Because the flaw sits in the authentication path itself (CWE-287) and requires no credentials, no user interaction, and no special configuration, any instance whose LDAP port (typically 389, or 636 for LDAPS) is reachable from an untrusted network should be treated as exposed. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation over LDAP against default configurations of Oracle Internet Directory (OID LDAP Server), affecting 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, not a high-CVSS-but-low-risk artifact. … 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 fix published in Oracle's security alert for this issue (https://www.oracle.com/security-alerts/cspusep2026.html), which is the authoritative source for the exact patched build; no specific fix version number is stated in the supplied intelligence, so verify the target version against that advisory rather than assuming any release. … 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 and determine which LDAP listeners (389/TCP, or 636/TCP for LDAPS) are reachable from untrusted networks; block those ports at the perimeter and host firewalls immediately, restricting access to a documented allowlist of trusted application and administrative subnets, and enable LDAP bind and administrative-operation logging so anomalous or unexpected anonymous binds are captured. …
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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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