How severe is CVE-2021-27473?

CVE-2021-27473 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-27473 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27473?

CVE-2021-27473 affects Rockwellautomation Connected Components Workbench. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27473?

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

When was CVE-2021-27473 published?

CVE-2021-27473 was published on 2022-03-23 and last updated on 2026-06-17.

CVE-2021-27473

CVE-2021-27473 is a medium-severity vulnerability in Rockwellautomation Connected Components Workbench with a CVSS 3.x base score of 6.1. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 6.9
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Rockwellautomation Connected Components Workbench
Published: 2022-03-23
Last modified: 2026-06-17

Description

Rockwell Automation Connected Components Workbench v12.00.00 and prior does not sanitize paths specified within the .ccwarc archive file during extraction. This type of vulnerability is also commonly referred to as a Zip Slip. A local, authenticated attacker can create a malicious .ccwarc archive file that, when opened by Connected Components Workbench, will allow the attacker to gain the privileges of the software. If the software is running at SYSTEM level, the attacker will gain admin level privileges. User interaction is required for this exploit to be successful.

Frequently asked questions

What is CVE-2021-27473?: Rockwell Automation Connected Components Workbench v12.00.00 and prior does not sanitize paths specified within the .ccwarc archive file during extraction. This type of vulnerability is also commonly referred to as a Zip Slip. A local, authenticated attacker can create a malicious .ccwarc archive file that, when opened by Connected Components Workbench, will allow the attacker to gain the privileges of the software. If the software is running at SYSTEM level, the attacker will gain admin level privileges. User interaction is required for this exploit to be successful.
How severe is CVE-2021-27473?: CVE-2021-27473 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-27473 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27473?: CVE-2021-27473 affects Rockwellautomation Connected Components Workbench. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27473?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27473 published?: CVE-2021-27473 was published on 2022-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rockwellautomation:connected_components_workbench:*:*:*:*:*:*:*:*

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