How severe is CVE-2021-27462?

CVE-2021-27462 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-2021-27462 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27462?

CVE-2021-27462 affects Rockwellautomation Factorytalk Assetcentre. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27462?

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-2021-27462 published?

CVE-2021-27462 was published on 2022-03-23 and last updated on 2026-06-17.

CVE-2021-27462

CVE-2021-27462 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Rockwellautomation Factorytalk Assetcentre
Published: 2022-03-23
Last modified: 2026-06-17

Description

A deserialization vulnerability exists in how the AosService.rem service in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier verifies serialized data. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in FactoryTalk AssetCentre.

Frequently asked questions

What is CVE-2021-27462?: A deserialization vulnerability exists in how the AosService.rem service in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier verifies serialized data. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in FactoryTalk AssetCentre.
How severe is CVE-2021-27462?: CVE-2021-27462 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-2021-27462 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27462?: CVE-2021-27462 affects Rockwellautomation Factorytalk Assetcentre. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27462?: 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-2021-27462 published?: CVE-2021-27462 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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