What is CVE-2021-27475?

CVE-2021-27475 is a high-severity vulnerability in Rockwell Automation Connected Components Workbench, classified under Deserialization of Untrusted Data. CVSS score: 8.6/10. Published 2022-03-23.

How severe is CVE-2021-27475?

High severity. CVSS v3 base score is 8.6 out of 10.

Deserialization in Rockwell Automation Connected Components Workbench

CVE-2021-27475

Rockwell Automation Connected Components Workbench v12.00.00 and prior does not limit the objects that can be deserialized. This vulnerability allows attackers to craft a malicious serialized object that, if opened by a local user in Connected Components Workbench, may result in remote code execution. This vulnerability requires user interaction to be successfully exploited.

Vulnerability class: Insecure Deserialization

EPSS: 0.029 (85.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Rockwell Automation Connected Components Workbench — versions unspecified
Rockwellautomation Connected_components_workbench

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory)
ics-cert@hq.dhs.gov (Vendor Advisory, Permissions Required, x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2021-27475?: CVE-2021-27475 is a high-severity vulnerability in Rockwell Automation Connected Components Workbench, classified under Deserialization of Untrusted Data. CVSS score: 8.6/10. Published 2022-03-23.
How severe is CVE-2021-27475?: High severity. CVSS v3 base score is 8.6 out of 10.