CVE-2026-17206
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Buffer Overflow in IBM i

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 execute arbitrary code due to a buffer overflow.

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-14
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-17206
EUVD
EUVD-2026-58237

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
ibm i 7.6
ibm i 7.5
ibm i 7.4
ibm i 7.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This is a buffer overflow vulnerability in IBM i versions 7.6, 7.5, 7.4, and 7.3. A remote attacker could exploit it to execute arbitrary code on the affected system by sending specially crafted input that exceeds the buffer's capacity.

Impact Analysis

An attacker could gain control of the system, steal data, install malware, or disrupt operations. This could lead to unauthorized access, data breaches, or system outages depending on the system's role and data stored.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate GDPR (data protection) or HIPAA (health data privacy) requirements. Organizations must address it to maintain compliance and avoid penalties.

Mitigation Strategies

Apply the latest IBM i PTFs or updates provided by IBM to address the buffer overflow vulnerability. Monitor IBM PSIRT advisories for patches and test them in a non-production environment before deployment.

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