Privilege Escalation Vulnerability in IBM i by IBM
CVE-2026-18683

8.8HIGH

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
12 August 2026

What is CVE-2026-18683?

IBM i versions 7.6, 7.5, 7.4, and 7.3 contain a serious vulnerability within the Navigator for i interface that allows authenticated users to elevate their privileges to that of a root user. This security flaw enables potential attackers to execute unauthorized commands, posing significant risks to system integrity. Organizations using affected versions are advised to apply the latest patches to mitigate this security issue.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7283292
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.