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

• CWE-295

• https://cert-portal.siemens.com/productcert/pdf/ssa-523250.pdfPatch, Vendor Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-523250.pdfPatch, Vendor Advisory

Published

Dec 14, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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