CVE-2026-17101

Analyzed Analyzed - Analysis Complete

Improper Authentication in IBM i

Publication date: 2026-08-13

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to execute arbitrary code or obtain sensitive information due to improper authentication.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-13

Last Modified

2026-08-19

Generated

2026-09-03

AI Q&A

2026-08-14

EPSS Evaluated

2026-09-02

NVD

CVE-2026-17101

EUVD

EUVD-2026-58399

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	i	7.3
ibm	i	7.4
ibm	i	7.5
ibm	i	7.6

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Attack-Flow Graph

Executive Summary

This vulnerability in IBM i versions 7.6, 7.5, 7.4, and 7.3 allows a remote attacker to execute arbitrary code or access sensitive information due to weak authentication mechanisms.

Detection Guidance

This vulnerability involves improper authentication in IBM i systems. Detection requires checking for unauthorized access attempts or unusual activity in authentication logs. Review system logs for failed login attempts or unexpected privilege escalations. Use commands like 'grep' or 'journalctl' to search for suspicious authentication events. Ensure IBM i systems are updated to the latest fixes provided by IBM.

Impact Analysis

An attacker could exploit this to run unauthorized commands on your system or steal confidential data, potentially leading to full system compromise or data breaches.

Compliance Impact

This vulnerability allows remote attackers to execute arbitrary code or obtain sensitive information due to improper authentication. This could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA compliance requirements for data protection and access controls.

Mitigation Strategies

Apply IBM i PTFs or updates as soon as they are available to address improper authentication issues. Monitor IBM security advisories for patches and restrict remote access to trusted sources only.

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