CVE-2020-37216: Hirschmann HiOS EtherNet/IP Stack Denial of Service
Belden · Hirschmann HiOS
Vendor fix available · Affected: Belden Hirschmann HiOS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 61% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Belden · Hirschmann HiOSfrom 05.00.00 up to and including 08.0.00
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Belden
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2020-37216 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.