How severe is CVE-2021-32496?

CVE-2021-32496 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-32496 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32496?

CVE-2021-32496 affects Sick Visionary-s Cx Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32496?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-32496 published?

CVE-2021-32496 was published on 2021-06-28 and last updated on 2026-06-17.

CVE-2021-32496

CVE-2021-32496 is a medium-severity vulnerability in Sick Visionary-s Cx Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-326.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 3.5
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Sick Visionary-s Cx Firmware
Published: 2021-06-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-32496?: CVE-2021-32496 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-32496 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32496?: CVE-2021-32496 affects Sick Visionary-s Cx Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32496?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-32496 published?: CVE-2021-32496 was published on 2021-06-28 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:o:sick:visionary-s_cx_firmware:*:*:*:*:*:*:*:*

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