CVE-2026-47061 Oracle CVE debrief

Who should care

Organizations using Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2 should be aware of this vulnerability and take necessary precautions. This includes reviewing their current deployments for potential exposure, implementing compensating controls to limit access to the physical communication segment, and monitoring for unauthorized access attempts to critical data. Security teams and vulnerability management teams should prioritize this vulnerability based on its CVSS score of 5.6 and the difficulty in exploiting it. Affected operators and platforms should also consider the potential operational impact and review context provided by the CVE record and vendor advisory. Additionally, defenders should verify the integrity of their systems and ensure that they have the necessary controls in place to prevent unauthorized access. This may involve coordinating with Oracle support and reviewing system logs for suspicious activity. The vulnerability's impact on additional products should also be considered, and organizations should assess their overall exposure and risk. By taking these steps, organizations can reduce the risk associated with this vulnerability and protect their critical data. It is also essential to track exceptions, retest remediated assets, and close the item only after evidence is documented. This will help ensure that the vulnerability is properly addressed and that the organization's systems are secure. Furthermore, organizations should consider the potential for scope change and the impact on other products that may be affected by this vulnerability. By being proactive and taking a comprehensive approach to addressing this vulnerability, organizations can minimize their risk and protect their assets. The CVE record and vendor advisory provide critical information that should be reviewed and used to inform remediation efforts. By following these guidelines and taking a proactive approach, organizations can effectively manage this vulnerability and reduce their risk exposure. This may also involve reviewing and updating incident response plans to ensure that they are prepared to respond to potential security incidents. By

Technical summary

The CVE-2026-47061 vulnerability is in the JDBC component of Oracle Database Server, affecting versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. It is a difficult-to-exploit vulnerability that allows unauthenticated attackers with access to the physical communication segment to compromise JDBC, potentially impacting additional products. Successful attacks require human interaction and can result in unauthorized access to critical data.

Defensive priority

Medium priority given the CVSS score of 5.6 and the difficulty in exploiting the vulnerability.

Recommended defensive actions

• Inventory and verify Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2 for potential exposure.
• Implement compensating controls to limit access to the physical communication segment.
• Monitor for unauthorized access attempts to critical data.
• Apply vendor remediation when available.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The vulnerability is in the JDBC component of Oracle Database Server, affecting versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. Human interaction is required for successful attacks. The CVSS vector is CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N.

Official resources