CVE-2026-17203

7.5

IBM · Administration Runtime Expert for i

IBM Administration Runtime Expert for i version 1R1M0 contains an improper authentication enforcement vulnerability that may allow a remote attacker to access sensitive information.

Executive summary

A critical authentication flaw in IBM Administration Runtime Expert for i 1R1M0 allows remote attackers to access sensitive data, necessitating immediate remediation.

Vulnerability

This vulnerability involves improper authentication enforcement (CWE-287), which allows a remote attacker to bypass security checks and gain unauthorized access to sensitive information. Despite the description mentioning an authenticated attacker, the CVSS vector (AV:N/AC:L/PR:N) indicates that the vulnerability is exploitable by an unauthenticated remote attacker.

Business impact

The ability for an unauthorized party to retrieve sensitive information from the Administration Runtime Expert for i platform poses a significant risk to organizational data confidentiality. Given the CVSS score of 7.5, this vulnerability is classified as High severity and could lead to the exposure of configuration details or other proprietary data stored within the runtime environment.

Remediation

Immediate Action: Apply the vendor-provided PTF (Program Temporary Fix) number SJ11185 immediately to resolve the authentication bypass. Note that applying this fix will render the legacy ARE GUI nonfunctional.

Proactive Monitoring: Review system access logs for unusual patterns or unauthorized connection attempts targeting the Administration Runtime Expert for i interface.

Compensating Controls: Ensure the administration interface is not exposed to the public internet and restrict access to the application via network-level controls like VPNs or IP whitelisting.

Exploitation status

Public Exploit Available: Unknown (no confirmed weaponized exploit or public proof-of-concept identified in the provided data).

Analyst recommendation

Organizations utilizing IBM Administration Runtime Expert for i 1R1M0 must prioritize the application of PTF SJ11185 to close the authentication gap. Because the patch disables the legacy GUI, IT teams should verify operational continuity and transition to supported management methods immediately after the update.

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