CVE-2026-4942 MEDIUM

CVE-2026-4942: IBM i is Affected by Algorithm Downgrade in Transport Layer Security []

Vendor Ibm
Product i
Weakness CWE-757
Published July 17, 2026
Last update July 17, 2026
View on NVD All CVEs

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.

Key dates

02Disclosure timeline

July 17, 2026 CVE published