CVE-2026-18221highCWE-287

CVE-2026-18221: high-severity vulnerability in IBM i

IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DRDA [, ]

Published · Updated

Follow this CVE+ Monitor i

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.1epss 0.6%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
IBM · i
Related CVEs — IBM i

In the same product, most dangerous first.

CVE-2022-22495MEDIUMCVE-2022-22495EPSS 2.2%CVE-2024-51464MEDIUMIBM i authentication bypassEPSS 1.4%CVE-2021-20501MEDIUMCVE-2021-20501EPSS 1.4%CVE-2017-1460—CVE-2017-1460EPSS 1.4%CVE-2021-39056MEDIUMCVE-2021-39056EPSS 1.4%CVE-2019-4040MEDIUMCVE-2019-4040EPSS 1.3%