CVE-2020-37216
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Apr 03, 2026
Vendor
unknown
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.