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CVE-2016-8918 IBM CVE debrief

CVE-2016-8918 is a medium-severity IBM Integration Bus issue where, under non-default configurations, a remote user could authenticate without providing valid credentials. The NVD record cites IBM’s vendor advisory (ref-4) and assigns a CVSS 3.0 vector of AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N, indicating a network-reachable authentication weakness with integrity impact. Defenders should treat this as an access-control problem and validate that affected deployments are using the vendor-recommended fix and secure configuration.

Vendor
IBM
Product
CVE-2016-8918
CVSS
MEDIUM 5.9
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-01
Original CVE updated
2026-05-13
Advisory published
2017-02-01
Advisory updated
2026-05-13

Who should care

Administrators, platform owners, and security teams responsible for IBM Integration Bus 10.0 deployments—especially environments using non-default authentication or integration settings—should review this issue.

Technical summary

NVD describes the flaw as an authentication bypass in IBM Integration Bus 10.0 that can allow a remote user to authenticate without valid credentials when non-default configuration conditions are present. NVD maps the weakness to CWE-255 and records the vendor advisory and third-party reference links. The disclosed impact is integrity-focused (unauthorized authentication), with no direct confidentiality or availability impact reflected in the CVSS vector.

Defensive priority

Medium. This is network-reachable and can undermine trust boundaries, but NVD rates it with high attack complexity and the record does not indicate a known widespread exploitation campaign.

Recommended defensive actions

  • Identify IBM Integration Bus 10.0 systems and confirm whether any non-default authentication-related configuration is in use.
  • Review IBM’s vendor advisory referenced by NVD (ref-4) and apply the recommended patch or corrective guidance.
  • Check authentication and access logs for unexpected successful logins or identity changes around the affected service.
  • Restrict network exposure to administrative and integration endpoints where feasible until remediation is complete.
  • After remediation, validate that authentication controls behave as expected in the deployed configuration.

Evidence notes

Source evidence is limited to the official NVD record for CVE-2016-8918 and the references embedded there. NVD states the issue affects IBM Integration Bus 10.0 under non-default configurations and includes IBM’s advisory URL (ref-4) plus a SecurityFocus entry (ref-5). The CVE was published on 2017-02-01, and the supplied NVD record shows a later metadata modification on 2026-05-13; that later date is record maintenance time, not the vulnerability’s disclosure date.

Official resources

Publicly disclosed in the NVD record on 2017-02-01. The supplied source metadata shows a later NVD modification on 2026-05-13, which should not be treated as the original disclosure date.