CVE-2026-16956
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IBM Db2 Mirror for i OS Command Injection

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: IBM Corporation

Description
IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.

CVSS Scores

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Meta Information

Published
2026-08-12
Last Modified
2026-08-12
Generated
2026-08-13
AI Q&A
2026-08-12
EPSS Evaluated
N/A
NVD
CVE-2026-16956
EUVD
EUVD-2026-57380

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
ibm db2_mirror_for_i to 7.5 (exc)
ibm db2_mirror_for_i to 7.6 (exc)
ibm db2_mirror_for_i 7.6

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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Executive Summary

IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6 are vulnerable to OS command injection. This occurs due to improper neutralization of special elements in an OS command, allowing a remote attacker to execute arbitrary commands on the system.

Detection Guidance

Detecting this vulnerability requires checking the installed versions of IBM Db2 Mirror for i. Use the command DSPPTF LICPGM(5770SS1) to verify if the required PTF fixes (SJ10957 for 7.4, SJ10954 for 7.5, SJ10951 for 7.6) are applied. If these PTFs are missing, the system is likely vulnerable.

Impact Analysis

A remote attacker could exploit this to execute arbitrary commands, potentially leading to unauthorized access, data theft, system manipulation, or disruption of services. The high CVSS score (9.8) indicates severe impact on confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data security) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Apply the provided PTF fixes immediately: SJ10957 for version 7.4, SJ10954 for version 7.5, and SJ10951 for version 7.6. These patches address the OS command injection vulnerability. IBM strongly recommends this as the only mitigation method.

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