CVE-2021-32496

SICK Visionary-S CX up version 5.21.2.29154R are vulnerable to an Inadequate Encryption Strength vulnerability concerning the internal SSH interface solely used by SICK for recovering returned devices. The use of weak ciphers make it easier for an attacker to break the security that protects information transmitted from the client to the SSH server, assuming the attacker has access to the network on which the device is connected. This can increase the risk that encryption will be compromised, leading to the exposure of sensitive user information and man-in-the-middle attacks.

• CWE-326

• https://www.sick.com/de/en/service-and-support/the-sick-product-security-incident-response-team-sick-psirt/w/psirt/#advisoriesVendor Advisory
• https://www.sick.com/de/en/service-and-support/the-sick-product-security-incident-response-team-sick-psirt/w/psirt/#advisoriesVendor Advisory

Published

Jun 28, 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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