CVE-2020-37216

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

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

Vulnerability 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.

Vulnerability Details

Published Date

April 03, 2026

Last Modified

April 07, 2026

CWE ID

CWE-20

Source

NVD

Vendor

Belden

Product

Hirschmann HiOS

External References

https://assets.belden.com/m/3d3e2cbfa4860258/original/Belden-Security-Bulletin-BSECV-2019-14.pdf
https://www.vulncheck.com/advisories/hirschmann-hios-ethernet-ip-stack-denial-of-service

CVE-2020-37216

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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