CVE-2026-4942

MEDIUM

IBM i is Affected by Algorithm Downgrade in Transport Layer Security []

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-4942 has a selected CVSS score of 5.9 (medium).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jul 20, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

i

Browse IBM / i
CVE List7.6affected
7.5affected
7.4affected
7.3affected

References

2