What’s Vulnerable › Vulnerabilities

CVE-2021-32496

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-28 · updated 2026-06-17
• Weakness: CWE-326

Description

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.

Affected products

• SICK Visionary-S CX: before 5.21.2.29154r — fixed in 5.21.2.29154r

How to fix

Upgrade to a fixed version: SICK Visionary-S CX 5.21.2.29154r. Check the vendor advisory for mitigations.

References

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

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