PT-2026-30209 · Belden · Hirschmann Hios+1

Published 2026-04-03 · Updated 2026-04-03 · CVE-2020-37216

NVD

CVSS v3.1

7.5

High

Base vector

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

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.

Fix

Untrusted Search Path

RCE

Weakness Enumeration

CWE-426

CWE-20

Related Identifiers

CVE-2020-37216

Affected Products

Hirschmann Hios

Hirschmann Industrial Hivision

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2020-37216 · Security Note
• https://assets.belden.com/m/3d3e2cbfa4860258/original/Belden-Security-Bulletin-BSECV-2019-14.pdf · Vendor Advisory
• https://vulncheck.com/advisories/hirschmann-industrial-hivision-untrusted-search-path-arbitrary-binary-execution · Vendor Advisory
• https://vulncheck.com/advisories/hirschmann-hios-ethernet-ip-stack-denial-of-service · Note