CVE-2026-16856 PUBLISHED

IBM i is Affected By Multiple Vulnerabilities in Domain Name System

Assigner: ibm
Reserved: 24.07.2026 Published: 12.08.2026 Updated: 12.08.2026

IBM i 7.6, and 7.5 could allow a local attacker to gain elevated privileges due to improper neutralization of special elements used in an OS command.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	i
Versions	Version 7.6 is affected Version 7.5 is affected

Solutions

IBM strongly recommends addressing the vulnerability now.

IBM i Release5770-SS1 Option 33 PTF Number(s)PTF Download Link(s)7.6SJ10931 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10931 7.5SJ11010 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11010

IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

References

https://www.ibm.com/support/pages/node/7283284

Problem Types

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE