CVE-2026-47038 Oracle CVE debrief

Who should care

Oracle Database Server administrators and users, especially those with high privileges and network access to the RDBMS component, should review and apply Oracle's security patches for CVE-2026-47038. They should also restrict network access to Oracle Net and monitor RDBMS for unauthorized changes. Additionally, security teams and vulnerability management teams should be aware of the potential security risks associated with this vulnerability and plan accordingly. Affected operators should prioritize patching and review compensating controls for exposed systems while remediation is scheduled and verified. Those responsible for asset inventory and change management should ensure that affected systems are identified and prioritized for patching. Monitoring and detection teams should be aware of the potential for unauthorized changes and review relevant logs for exposed assets that need extra review. Those tracking exceptions and retesting remediated assets should close the item only after evidence is documented. Those managing rollback and change windows should consider the potential impact on business operations and plan accordingly. Source tracking and incident response teams should be prepared to respond to potential security incidents related to this vulnerability. Security teams should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Those responsible for monitoring, detection, and logs should check for exposed assets that need extra review. Those tracking exceptions, retesting remediated assets, and closing items should do so only after evidence is documented. Those managing rollback and change windows should consider the potential impact on business operations and plan accordingly. Source tracking and incident response teams should be prepared to respond to potential security incidents related to this vulnerability. Security teams should review the official advisory and CVE record,

Technical summary

The CVE-2026-47038 vulnerability is a low-severity issue in the RDBMS component of Oracle Database Server. It has a CVSS score of 2.7 and can be exploited by high privileged attackers with network access via Oracle Net, potentially leading to unauthorized data modifications. The vulnerability is easily exploitable and affects Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2.

Defensive priority

Review Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2 for potential security risks.

Recommended defensive actions

• Review and apply Oracle's security patches for CVE-2026-47038
• Restrict network access to Oracle Net
• Monitor RDBMS for unauthorized changes
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE-2026-47038 vulnerability affects Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. It allows high privileged attackers with network access via Oracle Net to compromise RDBMS, potentially leading to unauthorized update, insert or delete access to some RDBMS accessible data. Evidence is limited to CVE and NVD details. Defenders should verify patch application, review network access controls, and monitor for unauthorized changes.

Official resources