Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAccess exposed LDAP service
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DeliverySend crafted LDAP bind or request
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ExploitBypass authentication due to CWE-287
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ExecutionTake over Oracle Internet Directory
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ImpactCompromise dependent systems via scope change
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | No special conditions - remote unauthenticated exploitation against default configurations of Oracle Internet Directory 12.2.1.4.0 and 14.1.2.1.0 when the OID LDAP Server is reachable over the network. Exploitation requires access to the LDAP service, typically on TCP 389 or 636, but does not require authentication or user interaction. The limiting factor is exposure: deployments where LDAP is restricted to trusted internal networks are less exposed than internet-facing configurations. |
| Impact | CVSS 3.1 rates this 10.0 critical with network attack vector, low complexity, no privileges, and no user interaction, meaning a remotely reachable LDAP interface is highly susceptible. However, EPSS exploitation probability and KEV status are not provided, so real-world exploitation prevalence cannot be confirmed. No POC is identified in the supplied references. SSVC assessment would classify technical impact as total, but exploitation and automatable statuses remain unknown due to missing KEV and POC data. For internet-exposed Oracle Internet Directory LDAP services this is a high urgency patching priority; for LDAP restricted to trusted internal networks, practical risk is lower. |
| Exploit ScenarioDerived | An attacker sends crafted LDAP requests to an internet-facing Oracle Internet Directory LDAP server. The authentication bypass in the LDAP component gives the attacker control over the directory service without credentials. The resulting scope change can then impact additional connected systems relying on the compromised directory. |
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Alert meAnalysisAIv1 – Sep 16, 2026
Takeover of Oracle Internet Directory via its LDAP server component allows unauthenticated remote attackers to fully compromise the directory service. Affected versions are 12.2.1.4.0 and 14.1.2.1.0. The vulnerability is rated CVSS 10.0 with scope change; no public exploit or CISA KEV listing was identified in the provided data.
RemediationAI
Apply the Oracle Critical Patch Update referenced in the vendor advisory at https://www.oracle.com/security-alerts/cspusep2026.html; the exact patched version is not specified in the provided data, so confirm the appropriate release with Oracle. Until patching is complete, restrict access to LDAP ports 389 and 636 using firewall or network ACLs so only trusted directory clients can connect, and avoid exposing OID LDAP to untrusted or internet-facing networks. This may disrupt application authentication or directory lookups if legitimate clients are not explicitly allowed, so validate all dependent systems before enforcing restrictions. Monitor LDAP server logs for unusual binds, search operations, or configuration changes.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Oracle Internet Directory is the LDAP directory service within Oracle Fusion Middleware, exposed through the OID LDAP Server component. The root cause is CWE-287 improper authentication, meaning the LDAP service can be accessed or taken over without valid credentials. The provided CVSS vector AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H indicates exploitation over the network via LDAP with low complexity, no privileges, no user interaction, and a scope change so compromise can significantly impact additional products beyond Oracle Internet Directory. Exact CPE strings were not included in the intelligence, but EUVD data lists affected versions 12.2.1.4.0 and 14.1.2.1.0.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Network LDAP attack vector, no privileges or interaction, scope change with full confidentiality, integrity, and availability impact.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.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. 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 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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EUVD-2026-79387
GHSA-gm73-mp37-g5cv
NVD
CVE.org
EPSS
Exploit-DB