CVE-2026-46890 Oracle Corporation CVE debrief

Who should care

Organizations using Siebel Apps - Marketing versions 17.0-26.5 should prioritize patching this vulnerability to prevent potential takeovers. This includes reviewing current deployments, identifying potential exposure, and implementing compensating controls until patching can be completed.

Technical summary

The vulnerability is located in the Marketing component of Siebel Apps - Marketing. It has a CVSS Vector of (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating a high impact on confidentiality, integrity, and availability. The vulnerability is easily exploitable and allows an unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Marketing. Successful attacks can result in takeover of Siebel Apps - Marketing.

Defensive priority

High priority should be given to patching this vulnerability due to its critical severity and potential for exploitation.

Recommended defensive actions

• Apply the patch provided by Oracle Corporation as soon as possible
• Conduct a thorough inventory of Siebel Apps - Marketing instances to identify potential exposure
• Implement compensating controls, such as network segmentation or access restrictions, until patching can be completed
• Monitor for any suspicious activity related to Siebel Apps - Marketing
• Verify the effectiveness of the patch through testing and validation
• Review and update incident response plans to include procedures for responding to potential exploitation of this vulnerability
• Coordinate with Oracle Corporation for additional guidance and support

Evidence notes

The CVE record was published on 2026-06-17T10:54:06.703Z and last modified on 2026-06-18T21:58:03.200Z. The NVD entry is currently Analyzed. Oracle Corporation has provided a vendor advisory for this vulnerability. The information provided is based on the available data and should be verified with Oracle Corporation for accuracy and completeness.

Official resources