CVE-2021-22772
Estado: ModificadaCrítica (9.8)—
A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.54%
- Percentil entre todas las CVEs puntuadas: 74
- 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 (3)
CWE
- CWE-306
- CWE-306
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-22772",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 7.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"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": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cybersecurity@se.com",
"affectedData": [
{
"vendor": "n/a",
"product": "Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier)",
"versions": [
{
"status": "affected",
"version": "Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier)"
}
]
}
]
}
],
"published": "2021-07-21T15:15:15.117",
"references": [
{
"url": "http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-05",
"tags": [
"Vendor Advisory"
],
"source": "cybersecurity@se.com"
},
{
"url": "http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-05",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "cybersecurity@se.com",
"description": [
{
"lang": "en",
"value": "CWE-306"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-306"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed."
},
{
"lang": "es",
"value": "A CWE-306: Se presenta una vulnerabilidad de Falta de Autentificación para una Función Crítica en Easergy T200 ((Modbus) SC2-04MOD-07000100 y anteriores), Easergy T200 ((IEC104) SC2-04IEC-07000100 y anteriores) y Easergy T200 ((DNP3) SC2-04DNP-07000102 y anteriores) que podría causar una operación no autorizada cuando es omitida la autenticación"
}
],
"lastModified": "2026-06-17T03:37:44.927",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2E9655C7-C2C9-444F-9947-35DF285BFADF",
"versionEndIncluding": "sc2-04mod-07000100"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200i:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "9FAE4F40-8155-4B2B-9792-A26A05D7E95D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FC20FA4B-9261-4A8D-AC52-3BF8EE36CBC1",
"versionEndIncluding": "sc2-04iec-07000100"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200i:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "9FAE4F40-8155-4B2B-9792-A26A05D7E95D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200i_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "06106386-3431-4F17-BD07-8DB75958F0D9",
"versionEndIncluding": "sc2-04dnp-07000102"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200i:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "9FAE4F40-8155-4B2B-9792-A26A05D7E95D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C10F9475-BAAD-42EF-B40A-66C5A43247FE",
"versionEndIncluding": "sc2-04mod-07000100"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BB10B0CE-A7B1-4314-9C44-BC6EA0130F03"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A8FED2E9-4F9A-46B1-A4D8-25AED9A8233F",
"versionEndIncluding": "sc2-04iec-07000100"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BB10B0CE-A7B1-4314-9C44-BC6EA0130F03"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200e_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FCC668BF-FEA7-4331-A1BD-0D091E92A2FA",
"versionEndIncluding": "sc2-04dnp-07000102"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BB10B0CE-A7B1-4314-9C44-BC6EA0130F03"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B9EDA52A-48AB-49F3-9E5B-13CC3BDDDB9A",
"versionEndIncluding": "sc2-04mod-07000100"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200p:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2E9591F3-1A7D-4727-BE81-836C49E9CE59"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BB389912-554D-4781-95E2-D2554F0CC5F9",
"versionEndIncluding": "sc2-04iec-07000100"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200p:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2E9591F3-1A7D-4727-BE81-836C49E9CE59"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:t200p_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D09BBBF5-312F-4CF6-88EA-50277AA98F2E",
"versionEndIncluding": "sc2-04dnp-07000102"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:t200p:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2E9591F3-1A7D-4727-BE81-836C49E9CE59"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cybersecurity@se.com"
}