CVE-2026-46889 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 operators, platform administrators, vulnerability management teams, and security teams who need to ensure the security of their systems.

Technical summary

The vulnerability is located in the Marketing component of Siebel Apps - Marketing. It is easily exploitable and allows unauthenticated attackers with network access via HTTP to compromise the system. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating high impacts on confidentiality, integrity, and availability. The vulnerability affects Siebel Apps - Marketing versions 17.0-26.5. There is no evidence of exploitation in the wild, but defenders should verify system configurations and inventory to ensure they are not exposed.

Defensive priority

High

Recommended defensive actions

• Apply the patch provided by Oracle Corporation
• Restrict network access to Siebel Apps - Marketing
• Monitor for suspicious activity
• Verify system configurations and inventory
• Implement compensating controls if patching is not feasible
• Review relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-06-17T10:54:06.600Z and last modified on 2026-06-18T22:59:55.710Z. The NVD entry is currently Analyzed. This information is based on the NVD entry and the CVE record. The vulnerability affects Siebel Apps - Marketing versions 17.0-26.5. There is no evidence of exploitation in the wild, but defenders should verify system configurations and inventory to ensure they are not exposed.

Official resources