Is CVE-2020-37216 actively exploited?

No active exploitation of CVE-2020-37216 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-37216 be exploited remotely?

Yes. CVE-2020-37216 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-37216?

CVE-2020-37216 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2020-37216

HIGH

CVE-2020-37216

CWE-20Published: April 3, 2026· Updated: Apr 7, 2026

7.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.0th

Official 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.

NVD Source

Technical Analysis

CVE-2020-37216 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.