CVE-2026-16975
Undergoing Analysis Undergoing Analysis - In Progress

Heap-Based 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 authenticated attacker to execute arbitrary code due to a heap-based 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-2026-16975
EUVD
EUVD-2026-58384

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
ibm i 7.6
ibm i 7.5
ibm i 7.4
ibm i 7.3
ibm ibm_i From 7.3 (inc) to 7.6 (inc)

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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 heap-based buffer overflow vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. A remote authenticated attacker can exploit it to execute arbitrary code on affected systems due to improper memory handling.

Detection Guidance

Detection primarily involves checking for the presence of vulnerable IBM i versions and verifying if the required PTFs are installed. Use the DSPPTF command on IBM i systems to check installed PTFs. Compare the installed PTFs against the required ones (MJ11019 for 7.6, MJ11050 for 7.5, MJ11051 for 7.4, MJ11052 for 7.3).

Impact Analysis

An attacker could gain control of your IBM i system, leading to data breaches, unauthorized access, or system compromise. This could disrupt operations and expose sensitive information.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR and HIPAA requirements for data protection and confidentiality. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies
  • Apply the provided PTFs for your IBM i version: MJ11019 for 7.6, MJ11050 for 7.5, MJ11051 for 7.4, and MJ11052 for 7.3.
  • If using an unsupported IBM i version, upgrade to a supported release.

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