CVE-2026-16859

Undergoing Analysis Undergoing Analysis - In Progress

Out-of-Bounds Read in IBM i Operating System

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: IBM Corporation

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-13

Last Modified

2026-08-13

Generated

2026-08-14

AI Q&A

2026-08-14

EPSS Evaluated

N/A

NVD

CVE-2026-16859

EUVD

EUVD-2026-58371

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

IBM i versions 7.6, 7.5, 7.4, and 7.3 are vulnerable to a remote attacker obtaining sensitive information due to an out-of-bounds read vulnerability.

Impact Analysis

A remote attacker could exploit this to access sensitive data on affected IBM i systems. The impact includes potential data breaches or unauthorized information disclosure.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA if sensitive personal or health data is exposed. Organizations may face legal penalties or reputational damage.

Mitigation Strategies

Apply the latest IBM i PTF or update to the latest version to address the out-of-bounds read issue. Monitor IBM's official security bulletins for patches and follow their recommended mitigation steps.

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