Home/CVE/A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly val
CVE

CVE-2021-42027

A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly val

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 by interfering in the communication path between the client and the intended server.

HIGH · CVSS 7.4 EPSS 0.00136
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

1
siemens sinumerik edge< 3.2
▣

Scoring & Timeline

7.4
HIGH · CVSS v3.1 · productcert@siemens.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Dec 2021 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
⚑

Vendor Advisories

2
siemens-csafSSA-523250
cisa-csafcisa-csaf-csaf_files-OT-white-2021-icsa-21-350-09
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-523250.pdfPatchVendor Advisory
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