What is CVE-2021-45445?

CVE-2021-45445 is a high-severity vulnerability in Unisys Clearpath Mcp Tcp\/ip Networking Services, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2022-01-12.

How severe is CVE-2021-45445?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Unisys Clearpath Mcp Tcp\/ip Networking Services

CVE-2021-45445

Unisys ClearPath MCP TCP/IP Networking Services 59.1, 60.0, and 62.0 has an Infinite Loop.

Published 2022-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Unisys Clearpath Mcp Tcp\/ip Networking Services — versions 59.1, 60.0, 62.0

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

unisys.com (Product)
public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx (Vendor Advisory)

Frequently asked questions

What is CVE-2021-45445?: CVE-2021-45445 is a high-severity vulnerability in Unisys Clearpath Mcp Tcp\/ip Networking Services, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2022-01-12.
How severe is CVE-2021-45445?: High severity. CVSS v3 base score is 7.5 out of 10.