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vuln-cve/data/2021/34xxx/CVE-2021-34566.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2021-34566",
"assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"state": "PUBLISHED",
"assignerShortName": "CERTVDE",
"requesterUserId": "520cc88b-a1c8-44f6-9154-21a4d74c769f",
"dateReserved": "2021-06-10T19:19:08.023Z",
"datePublished": "2022-11-09T15:17:14.172Z",
"dateUpdated": "2025-05-01T14:21:10.643Z"
},
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"defaultStatus": "unaffected",
"product": "750-81xx/xxx-xxxFW",
"vendor": "WAGO",
"versions": [
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"lessThanOrEqual": "FW18 Patch 2",
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],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "These vulnerabilities were reported to WAGO by Uri Katz of Claroty."
}
],
"datePublic": "2021-06-29T10:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS."
}
],
"value": "In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS."
}
],
"impacts": [
{
"capecId": "CAPEC-100",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-100 Overflow Buffers"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"shortName": "CERTVDE",
"dateUpdated": "2022-11-09T15:17:14.172Z"
},
"references": [
{
"url": "https://cert.vde.com/en/advisories/VDE-2020-036/"
}
],
"source": {
"advisory": "VDE-2020-036",
"discovery": "EXTERNAL"
},
"title": "WAGO I/O-Check Service prone to Memory Overflow",
"x_generator": {
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},
"adp": [
{
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"shortName": "CVE",
"dateUpdated": "2024-08-04T00:12:50.402Z"
},
"title": "CVE Program Container",
"references": [
{
"url": "https://cert.vde.com/en/advisories/VDE-2020-036/",
"tags": [
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{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-05-01T14:21:03.913921Z",
"id": "CVE-2021-34566",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
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"role": "CISA Coordinator",
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],
"title": "CISA ADP Vulnrichment",
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