Unisys OS 2200 Messaging Integration Services (NTSI) 7R3B IC3 and IC4, 7R3C, and 7R3D has…
Priority MEDIUM 44CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
EPSS 0.01169 67th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:unisys:messaging_integration_services:7r3b_ic3:*:*:*:*:*:*:* | 7r3b_ic3 | Vulnerable | Unisys |
| cpe:2.3:a:unisys:messaging_integration_services:7r3b_ic4:*:*:*:*:*:*:* | 7r3b_ic4 | Vulnerable | Unisys |
| cpe:2.3:a:unisys:messaging_integration_services:7r3c:*:*:*:*:*:*:* | 7r3c | Vulnerable | Unisys |
| cpe:2.3:a:unisys:messaging_integration_services:7r3d:*:*:*:*:*:*:* | 7r3d | Vulnerable | Unisys |
| cpe:2.3:o:unisys:clearpath_2200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Unisys |
- cpe:2.3:a:unisys:messaging_integration_services:7r3b_ic3:*:*:*:*:*:*:* Versions 7r3b_ic3 Vulnerable ·Unisys
- cpe:2.3:a:unisys:messaging_integration_services:7r3b_ic4:*:*:*:*:*:*:* Versions 7r3b_ic4 Vulnerable ·Unisys
- cpe:2.3:a:unisys:messaging_integration_services:7r3c:*:*:*:*:*:*:* Versions 7r3c Vulnerable ·Unisys
- cpe:2.3:a:unisys:messaging_integration_services:7r3d:*:*:*:*:*:*:* Versions 7r3d Vulnerable ·Unisys
- cpe:2.3:o:unisys:clearpath_2200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Unisys
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-43394
- 2026-10-03 Alias added: GHSA-64j4-qxf4-rh6w
References
Sources
- CVE-2021-43394 · CVE Program
- CVE-2021-43394 · NVD
- FIRST EPSS
- GHSA-64j4-qxf4-rh6w · GitHub Advisory Database · CC BY 4.0
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