CVE-2026-83055
9.9Oracle · Internet Directory
A critical vulnerability in the Oracle Internet Directory LDAP server allows a low privileged attacker to achieve a full system takeover via network access.
Executive summary
A critical vulnerability in Oracle Internet Directory allows authenticated attackers with low privileges to achieve complete system takeover, posing a severe risk to organizational infrastructure.
Vulnerability
This vulnerability resides in the OID LDAP Server component and allows a low privileged, authenticated attacker with network access to compromise the directory service. The flaw is easily exploitable and supports scope changes, enabling attackers to impact integrated products beyond the directory service itself.
Business impact
The potential for a total takeover of the Oracle Internet Directory service represents a catastrophic risk to business operations. Given the CVSS score of 9.9, this vulnerability permits unauthorized access to sensitive directory data, identity management systems, and potentially downstream enterprise applications, leading to significant data breaches and prolonged service outages.
Remediation
Immediate Action: Review the latest Oracle security alerts at the provided reference link and apply the relevant patches for versions 12.2.1.4.0 or 14.1.2.1.0 as soon as they are made available by the vendor.
Proactive Monitoring: Monitor LDAP traffic and directory server access logs for anomalous authentication patterns or unauthorized administrative commands originating from low privilege accounts.
Compensating Controls: Implement strict network segmentation to restrict access to the LDAP service to authorized internal segments only and deploy WAF or IPS rules designed to detect and block malicious LDAP query structures.
Exploitation status
Public Exploit Available: No
Analyst recommendation
Due to the critical nature of this vulnerability and the potential for full system takeover, organizations must treat this as a high priority remediation task. Security teams should proactively monitor for vendor patch releases and ensure that all affected Oracle Internet Directory instances are updated immediately upon the availability of a fix to prevent potential exploitation.
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History
- Disclosed CVE record published
- Collected by CVE Brief via github
- Analyst report written
- Published in the daily brief critical section
Sources
- Oracle Advisory Vendor advisory