CVE-2021-21002

Description by

CVSS 3.1

7.5

High

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Phoenix Contact FL COMSERVER UNI versions prior to 2.40

Description: The issue is related to an invalid Modbus exception response that can cause a temporary denial of service.

Recommendations: For versions prior to 2.40, update to version 2.40 or later to resolve the issue.

Exploitability

Fix

Impacts

Researchers

Vendors

Affected products

Weakness enumeration

Related identifiers

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