CVE-2021-43394

CRITICAL 9.8CVE-2021-43394 · Published 24/01/2022 · updated 17/06/2026

In short

CVE-2021-43394 is a CRITICAL (CVSS 9.8) vulnerability affecting messaging integration services (unisys).
Chance of exploitation in the next 30 days (EPSS): 1.2%, higher than 67.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
messaging integration services unisys	`= 7r3b_ic3= 7r3b_ic4= 7r3c= 7r3d`	No fix yet

Description

Unisys OS 2200 Messaging Integration Services (NTSI) 7R3B IC3 and IC4, 7R3C, and 7R3D has an Incorrect Implementation of an Authentication Algorithm. An LDAP password is not properly validated.

References

public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx · Vendor Advisory

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