CVE-2026-47045 Oracle CVE debrief

Who should care

Oracle Database Server administrators, security teams, and users with high privileges on Oracle Database Server instances should be aware of this vulnerability and take immediate action to mitigate the risk. They should review Oracle's security patch for JDBC component vulnerability, monitor for unusual activity on Oracle Net, and restrict access to JDBC for high privileged users. Additionally, they should implement compensating controls for human interaction requirements and inventory Oracle Database Server instances for versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. Security teams should prioritize patching and verify affected versions in their environments. Users with high privileges should be cautious when interacting with Oracle Net and JDBC components. Oracle Database Server administrators should also consider implementing additional security measures to prevent potential attacks. This vulnerability requires immediate attention due to high privileged attacker access and potential for takeover. Oracle Database Server instances should be reviewed for potential exposure and patched or mitigated accordingly. Security teams and administrators should work together to ensure that all necessary steps are taken to mitigate the risk of this vulnerability. Compensating controls and monitoring should be implemented to detect and prevent potential attacks. The vulnerability's CVSS score of 6.8 indicates a medium severity, but its potential impact is significant, making it essential for affected users to take prompt action. Oracle's security patch should be applied as soon as possible to prevent exploitation. In addition to patching, users should review their Oracle Database Server instances for potential exposure and implement additional security measures to prevent potential attacks. The vulnerability affects multiple versions of Oracle Database Server, making it essential for users to review their environments and take necessary steps to mitigate the risk. Oracle Database Server administrators and security teams should prioritize patching and implement compensating controls to prevent potential attacks. The vulnerability requires human interaction for a

Technical summary

CVE-2026-47045 is a vulnerability 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. The vulnerability allows high privileged attackers with network access via Oracle Net to compromise JDBC, with a CVSS 3.1 Base Score of 6.8. Successful attacks require human interaction from a person other than the attacker. The vulnerability requires immediate attention due to high privileged attacker access and potential for takeover. Oracle Database Server administrators and security teams should prioritize patching and implement compensating controls to prevent potential attacks. The vulnerability affects multiple versions of Oracle Database Server, making it essential for users to review their environments and take necessary steps to mitigate the risk. Oracle Database Server instances should be reviewed for potential exposure and patched or mitigated accordingly. Security teams and administrators should work together to ensure that all necessary steps are taken to mitigate the risk of this vulnerability.

Defensive priority

Oracle Database Server JDBC component vulnerability requires immediate attention due to high privileged attacker access and potential for takeover.

Recommended defensive actions

• Inventory Oracle Database Server instances for versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2
• Apply Oracle's security patch for JDBC component vulnerability
• Monitor for unusual activity on Oracle Net
• Restrict access to JDBC for high privileged users
• Implement compensating controls for human interaction requirements

Evidence notes

The CVE-2026-47045 vulnerability affects Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2, allowing high privileged attackers with network access via Oracle Net to compromise JDBC, requiring human interaction for successful attacks. Evidence is limited to CVE and NVD details. Defenders should verify affected versions, review Oracle's security patch, and monitor for unusual activity on Oracle Net.

Official resources