CVE-2026-16856: IBM I

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• IBM I: version 7.5 only; version 7.6 only

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