{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2020-37216",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-04-03T15:51:05.544Z",
        "datePublished": "2026-04-03T20:19:25.269Z",
        "dateUpdated": "2026-05-14T02:06:50.210Z"
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                "shortName": "VulnCheck",
                "dateUpdated": "2026-05-14T02:06:50.210Z"
            },
            "title": "Hirschmann HiOS EtherNet/IP Stack Denial of Service",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "datePublic": "2020-09-09T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-20",
                            "description": "CWE-20 Improper Input Validation",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Belden",
                    "product": "Hirschmann HiOS",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": ">= 08.1.00",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": ">= 07.1.01",
                            "versionType": "custom"
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                        {
                            "status": "affected",
                            "version": "05.00.00",
                            "versionType": "custom",
                            "lessThanOrEqual": "08.0.00"
                        }
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH",
                        "version": "3.1",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.5,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 8.7,
                        "vectorString": "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"
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            ],
            "references": [
                {
                    "url": "https://assets.belden.com/m/3d3e2cbfa4860258/original/Belden-Security-Bulletin-BSECV-2019-14.pdf",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/hirschmann-hios-ethernet-ip-stack-denial-of-service",
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            ],
            "source": {
                "discovery": "EXTERNAL"
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                            "content": {
                                "timestamp": "2026-04-04T03:22:43.470099Z",
                                "id": "CVE-2020-37216",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                        "Automatable": "yes"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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