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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

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References
Link Providers
https://assets.belden.com/m/3d3e2cbfa4860258/original/Belden-Security-Bulletin-BSECV-2019-14.pdf cve-icon cve-icon
https://www.vulncheck.com/advisories/hirschmann-hios-ethernet-ip-stack-denial-of-service cve-icon cve-icon
History

Sat, 04 Apr 2026 05:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 03 Apr 2026 21:30:00 +0000

Type Values Removed Values Added
Description Hirschmann Industrial HiVision versions 08.1.03 prior to 08.1.04 and 08.2.00 contains an untrusted search path vulnerability that allows local attackers to execute arbitrary binaries by placing a malicious binary in the path of a configured external application. Attackers can exploit insufficient path sanitization to cause the execution of a malicious binary instead of the intended application, potentially resulting in execution with elevated privileges. 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.
Title Hirschmann Industrial HiVision Untrusted Search Path Arbitrary Binary Execution Hirschmann HiOS EtherNet/IP Stack Denial of Service
Weaknesses CWE-426 CWE-20
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

 cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Fri, 03 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Description Hirschmann Industrial HiVision versions 08.1.03 prior to 08.1.04 and 08.2.00 contains an untrusted search path vulnerability that allows local attackers to execute arbitrary binaries by placing a malicious binary in the path of a configured external application. Attackers can exploit insufficient path sanitization to cause the execution of a malicious binary instead of the intended application, potentially resulting in execution with elevated privileges.
Title Hirschmann Industrial HiVision Untrusted Search Path Arbitrary Binary Execution
Weaknesses CWE-426
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-04T03:23:19.214Z

Reserved: 2026-04-03T15:51:05.544Z

Link: CVE-2020-37216

cve-icon Vulnrichment

Updated: 2026-04-04T03:23:13.641Z

cve-icon NVD

Status : Received

Published: 2026-04-03T21:17:08.213

Modified: 2026-04-03T21:17:08.213

Link: CVE-2020-37216

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.