CVE-2020-28400

high

Description

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.

References

https://cert-portal.siemens.com/productcert/html/ssa-599968.html

https://us-cert.cisa.gov/ics/advisories/icsa-21-194-03

https://cert-portal.siemens.com/productcert/pdf/ssa-599968.pdf

Details

Source: Mitre, NVD

Published: 2021-07-13

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N