CVE-2026-40370
Estado: AnalizadaAlta (8.8)—
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.01%
- Percentil entre todas las CVEs puntuadas: 62
- Fecha de la puntuación: 6/10/2026
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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement90 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 % - Impacto secundario
T1565.002Transmitted Data Manipulationimpact70 %
Vector AV:N/PR:L sin UI:R y acceso a servicios remotos de SQL Server (CWE-73: ruta externa) permite ejecución remota de código. PR:L indica atacante con credenciales, típico de T1210. El impacto principal es ejecución de código arbitrario; secundariamente, manipulación de datos en la base de datos.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (5)
CWE
- CWE-73
- CWE-610
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-40370",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-40370",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-05-13T03:57:25.195979Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "secure@microsoft.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "secure@microsoft.com",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2016 Service Pack 3 (GDR)",
"versions": [
{
"status": "affected",
"version": "13.0.0",
"lessThan": "13.0.6490.1",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack",
"versions": [
{
"status": "affected",
"version": "13.0.0",
"lessThan": "13.0.7085.1",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2017 (CU 31)",
"versions": [
{
"status": "affected",
"version": "14.0.0",
"lessThan": "14.0.3530.2",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2017 (GDR)",
"versions": [
{
"status": "affected",
"version": "14.0.0",
"lessThan": "14.0.2110.2",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2019 (CU 32)",
"versions": [
{
"status": "affected",
"version": "15.0.0.0",
"lessThan": "15.0.4470.1",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2019 (GDR)",
"versions": [
{
"status": "affected",
"version": "15.0.0",
"lessThan": "15.0.2170.1",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2022 (GDR)",
"versions": [
{
"status": "affected",
"version": "16.0.0",
"lessThan": "16.0.1180.1",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2022 for x64-based Systems (CU 24)",
"versions": [
{
"status": "affected",
"version": "16.0.0.0",
"lessThan": "16.0.4252.3",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2025 (CU 4)",
"versions": [
{
"status": "affected",
"version": "17.0.4040.1",
"lessThan": "17.0.4040.1",
"versionType": "custom"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)",
"versions": [
{
"status": "affected",
"version": "17.0.1050.2",
"lessThan": "17.0.1115.1",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
}
]
}
],
"published": "2026-05-12T18:17:16.147",
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40370",
"tags": [
"Vendor Advisory"
],
"source": "secure@microsoft.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "secure@microsoft.com",
"description": [
{
"lang": "en",
"value": "CWE-73"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-610"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "External control of file name or path in SQL Server allows an authorized attacker to execute code over a network."
}
],
"lastModified": "2026-06-18T17:23:30.523",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2016:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "07504D93-CA3C-49EA-A19E-9FF6E39DA2C2",
"versionEndExcluding": "13.0.6490.1",
"versionStartIncluding": "13.0.6300.2"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2016:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "8788D53F-C70A-4445-A091-0E6F3B3580C2",
"versionEndExcluding": "13.0.7085.1",
"versionStartIncluding": "13.0.7000.253"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2017:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "C57CAA5C-DBA1-4D67-AAE0-C6A140817060",
"versionEndExcluding": "14.0.2110.2",
"versionStartIncluding": "14.0.1000.169"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2017:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "4665DEEC-676A-4569-A186-0CBEC807DB2F",
"versionEndExcluding": "14.0.3530.2",
"versionStartIncluding": "14.0.3006.16"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "AA2CF0C9-AC74-4170-A3DA-6DBD6B191EE6",
"versionEndExcluding": "15.0.2170.1",
"versionStartIncluding": "15.0.2000.5"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "8ABD3289-C541-4C60-9F0C-51414D05CCCD",
"versionEndExcluding": "15.0.4470.1",
"versionStartIncluding": "15.0.4003.23"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "34EB59C6-69B7-4EC2-ABAE-0BD7C8AF0220",
"versionEndExcluding": "16.0.1180.1",
"versionStartIncluding": "16.0.1000.6"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "AA459F89-6125-4CA4-8376-244CA117BF5D",
"versionEndExcluding": "16.0.4252.3",
"versionStartIncluding": "16.0.4003.1"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "3354FA6E-48A1-406B-A2CB-DB9B769C7E1B",
"versionEndExcluding": "17.0.1115.1",
"versionStartIncluding": "17.0.1000.7"
},
{
"criteria": "cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "6440EDCA-2737-425A-9C84-A775C133C581",
"versionEndExcluding": "17.0.4040.1",
"versionStartIncluding": "17.0.4006.2"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secure@microsoft.com"
}