CVE-2026-18669

8.8

IBM · i

IBM i 7 contains a vulnerability involving execution with unnecessary privileges, potentially allowing authenticated users to perform unauthorized operations.

Executive summary

An execution with unnecessary privileges vulnerability in IBM i 7.3 through 7.6 allows an authenticated attacker to perform unauthorized actions, posing a high risk to system security.

Vulnerability

This vulnerability involves execution with unnecessary privileges (CWE-250), where the software performs sensitive operations using higher-than-required authorization. An authenticated attacker can exploit this discrepancy to bypass intended security boundaries and perform actions that should be restricted.

Business impact

The CVSS score of 8.8 indicates a critical threat to organizational security. Successful exploitation could result in the compromise of sensitive data, unauthorized configuration changes, or the disruption of critical business processes, directly impacting the confidentiality, integrity, and availability of the IBM i platform.

Remediation

Immediate Action: Apply the corresponding PTF for your release: SJ11009 (7.6), SJ10978 (7.5), SJ10977 (7.4), or SJ10976 (7.3).

Proactive Monitoring: Audit logs should be reviewed regularly for suspicious activity, specifically looking for users attempting to access objects or functions that are outside their normal scope of operation.

Compensating Controls: While patching is the primary remedy, organizations can enforce strict account monitoring and limit the number of users with access to critical system components as a temporary measure.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Administrators must treat this vulnerability as high priority and apply the necessary patches provided by IBM. Ensuring the system is updated is essential to closing the privilege gap and protecting the environment against unauthorized access and potential data compromise.

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