{"id":"CVE-2021-43394","aliases":["EUVD-2021-30329","GHSA-64j4-qxf4-rh6w"],"status":"published","title":"Unisys OS 2200 Messaging Integration Services (NTSI) 7R3B IC3 and IC4, 7R3C, and 7R3D has an...","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01169,"percentile":0.67616,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2022-01-24T21:15:02Z","modified":"2026-06-17T04:10:54Z","products":[{"vendor":"unisys","product":"messaging_integration_services"}],"references":[{"url":"https://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=66","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43394"},{"url":"https://github.com/advisories/GHSA-64j4-qxf4-rh6w"}],"sources":{"cve":[{"id":"CVE-2021-43394","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.","status":"published","published":"2022-01-24T21:15:02Z","modified":"2024-08-04T03:55:28.698Z","updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30329","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.","status":"published","published":"2022-01-24T21:15:02Z","modified":"2024-08-04T03:55:28Z","updated_at":"2026-11-03T03:24:14.245608Z"}],"ghsa":[{"id":"GHSA-64j4-qxf4-rh6w","title":"Unisys OS 2200 Messaging Integration Services (NTSI) 7R3B IC3 and IC4, 7R3C, and 7R3D has an...","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.","status":"published","published":"2022-01-25T00:00:43Z","modified":"2023-02-03T05:05:07Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:53:41.038786Z"}],"nvd":[{"id":"CVE-2021-43394","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.","status":"published","published":"2022-01-24T22:15:07.763Z","modified":"2026-06-17T04:10:54.443Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:03.821385Z"}]}}