CVE-2020-37216 (GCVE-0-2020-37216)
Vulnerability from cvelistv5
Published
2026-04-03 20:19
Modified
2026-04-04 03:23
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Summary
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.
References
Impacted products
Vendor Product Version
Belden Hirschmann HiOS Patch: >= 08.1.00
Patch: >= 07.1.01
Version: 05.00.00   ≤ 08.0.00
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