CVE-2020-28400 HIGH

CVE-2020-28400

Vendor Siemens
Product Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller
Weakness CWE-770 · Uncontrolled resource consumption
Published July 13, 2021
Last update April 14, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.

Key dates

02Disclosure timeline

July 13, 2021 CVE published
April 14, 2026 Record updated