CVE-2026-18527

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IBM i Privilege Escalation in ARE GUI Component

Publication date: 2026-08-28

Last updated on: 2026-08-31

Assigner: IBM Corporation

Description

IBM Administration Runtime Expert for i 1R1M0 IBM Application Runtime Expert (ARE) for i could allow a remote attacker to gain elevated privileges, caused by ARE GUI component processing. An unauthenticated attacker can exploit this vulnerability to execute actions under another user's authenticated profile gaining elevated privileges on the IBM i system.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-28

Last Modified

2026-08-31

Generated

2026-09-18

AI Q&A

2026-08-29

EPSS Evaluated

2026-09-15

NVD

CVE-2026-18527

EUVD

EUVD-2026-67950

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	application_runtime_expert	1r1m0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-384	Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

Attack-Flow Graph

Executive Summary

This vulnerability allows a remote attacker to gain elevated privileges on an IBM i system by exploiting the ARE GUI component. An unauthenticated attacker can execute actions under another user's authenticated profile, potentially taking control of the system.

Detection Guidance

This vulnerability involves IBM Administration Runtime Expert for i allowing remote attackers to gain elevated privileges through the ARE GUI component. Detection requires checking for unauthorized access attempts or privilege escalation events on IBM i systems running ARE for i 1R1M0. Monitor logs for suspicious GUI component interactions or unexpected user profile changes.

Impact Analysis

This vulnerability can lead to unauthorized access, data breaches, or system compromise. Attackers could install malware, steal sensitive data, or disrupt operations on the affected IBM i system.

Compliance Impact

This vulnerability could result in non-compliance with GDPR, HIPAA, or other regulations due to unauthorized access to sensitive data. Organizations may face legal penalties, fines, or reputational damage if exploited.

Mitigation Strategies

Apply the latest IBM Administration Runtime Expert for i updates or patches immediately. Restrict network access to the ARE GUI component and monitor for unauthorized privileged actions on the IBM i system.

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