CVE-2026-18683: IBM I

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

IBM i 7.6, 7.5, 7.4, and 7.3 is vulnerable to privilege escalation via Navigator for i. An authenticated user could elevate privileges to a root user to execute commands.

Affected products

• IBM I: version 7.3 only; version 7.4 only; version 7.5 only; version 7.6 only

Published 2026-08-12. Last modified 2026-08-17.