CVE-2026-17488

Analyzed Analyzed - Analysis Complete

Authentication Bypass in IBM i

Publication date: 2026-10-16

Last updated on: 2026-10-23

Assigner: IBM Corporation

Description

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.

CVSS Scores

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Meta Information

Published

2026-10-16

Last Modified

2026-10-23

Generated

2026-11-08

AI Q&A

2026-10-17

EPSS Evaluated

2026-11-07

NVD

CVE-2026-17488

EUVD

EUVD-2026-103138

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 7.3 to 7.6 allows a remote authenticated attacker to bypass security restrictions due to improper authentication mechanisms.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive data or perform actions beyond their intended permissions, potentially leading to data breaches or system misuse.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating compliance requirements for data protection standards like GDPR and HIPAA, which mandate strict access controls and authentication.

Mitigation Strategies

Apply IBM i PTFs or updates to address improper authentication. Ensure strong authentication mechanisms are enforced and restrict remote access to trusted sources only.

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