CVE-2026-18221

published 2026-09-04

CVE-2026-18221: IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to gain unauthorized access due to improper validation of client-supplied authentication parameters.

Priority P2 66 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to gain unauthorized access due to improper validation of client-supplied authentication parameters.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
ibm	i	—	—
ibm	i	—	—
ibm	i	—	—
ibm	i	—	—

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CWE-287