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CVE-2016-8311 Oracle CVE debrief

CVE-2016-8311 is a medium-severity Oracle FLEXCUBE Universal Banking vulnerability affecting the Core component in several supported releases. Oracle and NVD describe it as an easily exploitable issue reachable over HTTP by a low-privileged network attacker, with the main impact being unauthorized access to sensitive data.

Vendor
Oracle
Product
CVE-2016-8311
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2017-01-27
Original CVE updated
2026-05-13
Advisory published
2017-01-27
Advisory updated
2026-05-13

Who should care

Oracle FLEXCUBE administrators, banking application security teams, identity and access management owners, and incident responders supporting affected Oracle Financial Services Applications environments.

Technical summary

NVD maps this issue to CWE-284 (Improper Access Control) and lists affected FLEXCUBE Universal Banking versions 11.3.0, 11.4.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0, and 12.2.0. The CVSS v3.0 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) indicates a network-reachable vulnerability requiring low privileges, with high confidentiality impact and no reported integrity or availability impact in the supplied record.

Defensive priority

Medium. Treat as higher priority if the application is reachable from untrusted networks or processes regulated banking data.

Recommended defensive actions

  • Apply the Oracle-supplied update or mitigation referenced in the January 2017 CPU advisory for all affected FLEXCUBE versions.
  • Inventory FLEXCUBE Universal Banking deployments and verify whether any instance matches the affected versions listed in the NVD record.
  • Restrict network exposure to the application, especially HTTP access paths, to trusted administrative or business networks only.
  • Enforce least privilege for application users and service accounts, and review whether any roles can reach sensitive functions unnecessarily.
  • Monitor for anomalous access to sensitive data and for authentication or authorization failures around the FLEXCUBE Core component.
  • Track the official NVD and Oracle advisory references for vendor guidance and any environment-specific remediation steps.

Evidence notes

This debrief is based only on the supplied NVD record and its cited Oracle CPU January 2017 reference. The record states the vulnerability is in Oracle FLEXCUBE Universal Banking Core, is easily exploitable over HTTP by a low-privileged attacker, and can lead to unauthorized access to critical data. The supplied CVSS vector and CWE mapping come from the NVD metadata. No exploit details beyond the provided description are included.

Official resources

First published in the supplied record on 2017-01-27. NVD metadata also references Oracle’s January 2017 CPU advisory as the vendor source for patch guidance.