CVE-2026-18869: IBM I

Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions and access internal network services due to improper validation of FTP PORT and EPRT commands.

Affected products

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

Published 2026-09-18. Last modified 2026-09-22.