How severe is CVE-2021-27476?

CVE-2021-27476 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2021-27476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27476?

CVE-2021-27476 affects Rockwellautomation Factorytalk Assetcentre. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27476?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-27476 published?

CVE-2021-27476 was published on 2022-03-23 and last updated on 2026-06-17.

CVE-2021-27476

CVE-2021-27476 is a critical-severity vulnerability in Rockwellautomation Factorytalk Assetcentre with a CVSS 3.x base score of 10.0. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.5
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Rockwellautomation Factorytalk Assetcentre
Published: 2022-03-23
Last modified: 2026-06-17

Description

A vulnerability exists in the SaveConfigFile function of the RACompare Service, which may allow for OS command injection. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier.

Frequently asked questions

What is CVE-2021-27476?: A vulnerability exists in the SaveConfigFile function of the RACompare Service, which may allow for OS command injection. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier.
How severe is CVE-2021-27476?: CVE-2021-27476 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2021-27476 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27476?: CVE-2021-27476 affects Rockwellautomation Factorytalk Assetcentre. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27476?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-27476 published?: CVE-2021-27476 was published on 2022-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rockwellautomation:factorytalk_assetcentre:*:*:*:*:*:*:*:*

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