CVE-2026-18509 PUBLISHED

IBM i is Affected By A Prvilege Escalation Vulnerability []

Assigner: ibm
Reserved: 31.07.2026 Published: 13.08.2026 Updated: 14.08.2026

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to gain privilege escalation via the Navigator for i debugger. This could allow the attacker to access or manipulate sensitive data on the system, or create new profiles with elevated privileges on the IBM i system.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS Score: 8.2

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

CVSS 3.1

Product Status

Vendor	IBM
Product	i
Versions	Version 7.6 is affected Version 7.5 is affected Version 7.4 is affected Version 7.3 is affected

Solutions

IBM strongly recommends addressing the vulnerability now.

Navigator

IBM i Release5770-SS1 PTF Number(s)PTF Download Link(s)7.6SJ10887 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11126 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11125 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11124 7.3SJ11128 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11128 https://www.ibm.com/mysupport/s/fix-information

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/7283279

Problem Types

CWE-285 Improper Authorization CWE