Description

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a length value larger than the actual packet size to render the device inoperable.

INFO

Published Date :

2026-04-03T20:19:25.269Z

Last Modified :

2026-04-04T03:23:19.214Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2020-37216 vulnerability.

Vendors Products
Belden
  • Hirschmann Hios
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2020-37216.

URL Resource
https://assets.belden.com/m/3d3e2cbfa4860258/original/Belden-Security-Bulletin-BSECV-2019-14.pdf cve-icon cve-icon
https://www.vulncheck.com/advisories/hirschmann-hios-ethernet-ip-stack-denial-of-service cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact