CVE-2020-37216
High · 7.5CVSS
7.5
EPSS
0.9%
Published
Apr 3, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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