CVE-2021-22816
Estado: ModificadaAlta (7.5)—
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a Denial of Service of the RTU when receiving a specially crafted request over Modbus, and the RTU is configured as a Modbus server. Affected Products: SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E and 357E RTUs with firmware V8.18.1 and prior
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.95%
- Percentil entre todas las CVEs puntuadas: 60
- Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (9)
Schneider-electric — Scadapack 312e FirmwareSchneider-electric — Scadapack 313e FirmwareSchneider-electric — Scadapack 314e FirmwareSchneider-electric — Scadapack 330e FirmwareSchneider-electric — Scadapack 333e FirmwareSchneider-electric — Scadapack 334e FirmwareSchneider-electric — Scadapack 337e FirmwareSchneider-electric — Scadapack 350e FirmwareSchneider-electric — Scadapack 357e Firmware
CWE
- CWE-754
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-22816",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 7.8,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 6.9,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cybersecurity@se.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2022-01-28T20:15:10.303",
"references": [
{
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-01",
"tags": [
"Vendor Advisory"
],
"source": "cybersecurity@se.com"
},
{
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-01",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-754"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a Denial of Service of the RTU when receiving a specially crafted request over Modbus, and the RTU is configured as a Modbus server. Affected Products: SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E and 357E RTUs with firmware V8.18.1 and prior"
},
{
"lang": "es",
"value": "Una CWE-754: Se presenta una vulnerabilidad de Comprobación Inapropiada de Condiciones Inusuales o Excepcionales que podría causar una denegación de servicio del RTU cuando es recibida una petición especialmente diseñada a través de Modbus, y el RTU está configurado como un servidor Modbus. Productos afectados: SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E y 357E RTUs con firmware V8.18.1 y anteriores"
}
],
"lastModified": "2026-06-17T03:37:50.747",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_312e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4C1DF5C4-261B-4EB1-866B-6F95F9957D80",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_312e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "41D940A7-D3C5-48CF-8A74-C9D850962BE7"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_313e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E30F1191-6287-4E06-AEF2-F6B82CEC42B1",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_313e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "766B36C2-8488-4A26-A5CD-64793B295ABB"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_314e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "133F5A6C-E169-4B4D-B0B9-A586382263B3",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_314e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "13818C25-4C04-4574-BFC7-705E17C949FD"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_330e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0076A17D-7D30-460F-8188-4760046D37AC",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_330e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6C1BA637-CED5-490E-8786-87792ABADFA5"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_333e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "49F6E99B-F91C-4FE1-ADDE-D2025080D28A",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_333e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "0E564916-DF7C-4956-ADBF-347A9E921990"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_334e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "368AAD88-AA2A-4DEE-A5FF-CC7AA5285E33",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_334e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EB29193B-ABDA-49D0-9EFE-4A1AD177B344"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_337e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "787FF7D4-5B40-4A73-B3A0-F6AA19C73C0C",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_337e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3C278FB0-948C-45B4-9D7E-457356319C7D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_350e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DE252382-7E9E-4A9D-A038-131027FB41D2",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_350e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "464F5F6F-A56F-4035-BD07-E20B461CD961"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:scadapack_357e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "50F227EF-8541-4C2B-B96E-DC0859F5235E",
"versionEndExcluding": "8.19.1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:scadapack_357e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "27A03E75-1A51-4392-B78D-844FAF97EA3C"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cybersecurity@se.com"
}