CVE-2021-43394 describes a critical authentication bypass vulnerability in Unisys OS 2200 Messaging Integration Services (NTSI) versions 7R3B IC3/IC4, 7R3C, and 7R3D, where LDAP passwords are not properly validated. With a CVSS score of 9.8, this flaw allows unauthenticated attackers to remotely achieve full compromise of confidentiality, integrity, and availability with low attack complexity. Despite its critical severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
7r3b_ic3CPE matchmatch criteria | cpe:2.3:a:unisys:messaging_integration_services:7r3b_ic3:*:*:*:*:*:*:* | ||
7r3b_ic4CPE matchmatch criteria | cpe:2.3:a:unisys:messaging_integration_services:7r3b_ic4:*:*:*:*:*:*:* | ||
7r3cCPE matchmatch criteria | cpe:2.3:a:unisys:messaging_integration_services:7r3c:*:*:*:*:*:*:* | ||
7r3dCPE matchmatch criteria | cpe:2.3:a:unisys:messaging_integration_services:7r3d:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.