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CVE-2016-8304 Oracle CVE debrief

CVE-2016-8304 is a medium-severity Oracle FLEXCUBE Universal Banking issue affecting multiple supported releases. According to NVD, a low-privileged network attacker can exploit the flaw over HTTP, but success requires human interaction and can lead to unauthorized data reads and updates within FLEXCUBE.

Vendor
Oracle
Product
CVE-2016-8304
CVSS
MEDIUM 5.4
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 Universal Banking administrators, banking application owners, patch and vulnerability management teams, and security operations staff responsible for internet- or intranet-facing HTTP endpoints.

Technical summary

The NVD record maps this issue to CWE-284 (improper access control) and lists affected supported 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 is AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, indicating network reachability, low privileges, required user interaction, and limited confidentiality/integrity impact. Oracle’s January 2017 Critical Patch Update advisory is cited as the vendor remediation reference.

Defensive priority

Medium priority. Treat as standard patch-cycle remediation, with higher urgency if FLEXCUBE is reachable from less-trusted networks or exposed through user-facing HTTP workflows.

Recommended defensive actions

  • Confirm whether any affected FLEXCUBE Universal Banking versions are deployed, including supported releases listed by NVD.
  • Review the Oracle January 2017 CPU advisory referenced in the NVD record and apply the vendor-recommended remediation for the affected FLEXCUBE release.
  • Limit network exposure to FLEXCUBE HTTP services to trusted administrative and business paths only.
  • Enforce least privilege for application users and review any roles that can reach sensitive FLEXCUBE functions.
  • Monitor for unauthorized data reads, inserts, updates, or deletes in FLEXCUBE-accessible data.
  • Validate that user-interaction-dependent workflows are hardened with approval, authentication, and session controls where applicable.

Evidence notes

This debrief is based on the official NVD CVE record and the Oracle vendor advisory reference included in that record. The source corpus states that the issue is remotely reachable via HTTP, requires low privileges and human interaction, and may allow unauthorized read and modify access to some FLEXCUBE data. The recorded CVSS v3.0 vector is AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, with CWE-284 assigned as the primary weakness.

Official resources

Publicly disclosed in the official CVE/NVD record on 2017-01-27. The NVD entry references Oracle’s January 2017 security advisory as the vendor remediation source.