CVE-2021-27475

Rockwell Automation Connected Components Workbench Deserialization of Untrusted Data

HIGH
8.6
CVSS Score
Published: March 23, 2022 at 07:46 PM UTC
Updated: June 17, 2026 at 03:44 AM UTC
1 product affected across 1 vendorConnected Components Workbench

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Severity
HIGH8.6
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMThird Party AdvisoryUS Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHicscert
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-502

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