CVE-2026-87402 Oracle Corporation CVE debrief

Who should care

Defenders and administrators of Oracle E-Business Suite, especially those with low-privileged user access, should assess exposure and prioritize patching. This includes reviewing compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-87402 is a high-severity vulnerability in Oracle E-Business Suite's Applications DBA product. Defenders should prioritize patching and verifying exposure, especially for systems with low-privileged user access, as it could lead to system takeover.

• Potential system takeover by low-privileged attackers
• Requirement for human interaction for successful attacks
• High CVSS score indicating significant risk
• Need for patching and verification of exposure

Technical summary

The vulnerability is in the AD Utilities component of Applications DBA in Oracle E-Business Suite versions 12.2.3-12.2.15. It is easily exploitable by low-privileged attackers with logon access, requiring human interaction for successful attacks, which can lead to takeover. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Applications DBA. CVSS 3.1 Base Score 7.3 (Confidentiality, Integrity and Availability impacts).

Defensive priority

Defenders should prioritize patching and verifying exposure, especially for systems with low-privileged user access.

Recommended defensive actions

• Apply patches provided by Oracle
• Verify system exposure and upgrade to a supported version
• Monitor for suspicious activity
• Restrict access to low-privileged users
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and Oracle advisory provide details on the vulnerability. However, additional information on potential exploits or impacts is limited. There is no information on known or unknown affected scope. Defenders should verify exposure and review compensating controls for exposed systems while remediation is scheduled and verified.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.