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CVE-2021-21002

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CVE-2021-21002

Published: Jun 25, 2021

Modified: Sep 17, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.

VendorProductVersions

Phoenix Contact

FL COMSERVER

affected
UNI 232/422/485 (2313452) - < 2.40
affected
UNI 232/422/485-T (2904817) - < 2.40

Weaknesses (CWE)

CWE-772

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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