What is CVE-2021-42027?

CVE-2021-42027 is a high-severity vulnerability in Siemens Sinumerik Edge, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2021-12-14.

How severe is CVE-2021-42027?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Siemens Sinumerik Edge

CVE-2021-42027

A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly validate the server certificate when initiating a TLS connection. This could allow an attacker to spoof a trusted entity b…

Vulnerability class: Improper Certificate Validation

EPSS: 0.005 (38.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Siemens Sinumerik Edge — versions All versions < V3.2
Siemens Sinumerik_edge

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

productcert@siemens.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-42027?: CVE-2021-42027 is a high-severity vulnerability in Siemens Sinumerik Edge, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2021-12-14.
How severe is CVE-2021-42027?: High severity. CVSS v3 base score is 7.4 out of 10.