PT-2026-55583 · Ibm · I
CVE-2026-4942
·
Published
2026-07-03
·
Updated
2026-07-20
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
IBM i versions 7.3 through 7.6
Description
A remote attacker can send a specifically crafted message to downgrade the Transport Layer Security (TLS) protocol to a version that has been disabled in the server configuration. This issue involves the selection of a less-secure algorithm during negotiation, known as an algorithm downgrade.
Recommendations
For version 7.6, apply MJ09141.
For version 7.5, apply MJ09140.
For version 7.4, apply MJ09139.
For version 7.3, apply MJ09138.
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
I