CVE-2020-1046
Estado: ModificadaAlta (7.8)—
A remote code execution vulnerability exists when Microsoft .NET Framework processes input. An attacker who successfully exploited this vulnerability could take control of an affected system. To exploit the vulnerability, an attacker would need to be able to upload a specially crafted file to a web application. The security update addresses the vulnerability by correcting how .NET Framework processes input.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 3.76%
- Percentil entre todas las CVEs puntuadas: 90
- 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).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-1046",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 9.3,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "MEDIUM",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "secure@microsoft.com",
"affectedData": [
{
"cpes": [
"cpe:2.3:a:microsoft:.net:3.5:*:*:*:*:*:*:*"
],
"vendor": "Microsoft",
"product": "Microsoft .NET Framework 3.5",
"versions": [
{
"status": "affected",
"version": "3.5.0",
"lessThan": "publication",
"versionType": "custom"
}
],
"platforms": [
"Windows 10 Version 1909 for x64-based Systems",
"Windows 10 Version 1803 for 32-bit Systems",
"Windows 10 Version 1803 for x64-based Systems",
"Windows 10 Version 1803 for ARM64-based Systems",
"Windows 10 Version 1903 for 32-bit Systems",
"Windows 10 Version 1903 for x64-based Systems",
"Windows 10 Version 1709 for ARM64-based Systems",
"Windows 10 Version 1903 for ARM64-based Systems",
"Windows 10 Version 1607 for 32-bit Systems",
"Windows 10 Version 1709 for 32-bit Systems",
"Windows Server, version 1903 (Server Core installation)",
"Windows Server 2016 (Server Core installation)",
"Windows Server 2012 R2 (Server Core installation)",
"Windows Server 2016",
"Windows 8.1 for x64-based systems",
"Windows 10 Version 1709 for x64-based Systems",
"Windows Server 2012 R2",
"Windows 10 Version 1607 for x64-based Systems",
"Windows Server 2012",
"Windows 8.1 for 32-bit systems",
"Windows Server 2012 (Server Core installation)",
"Windows 10 for x64-based Systems",
"Windows 10 for 32-bit Systems",
"Windows 10 Version 1909 for 32-bit Systems",
"Windows 10 Version 1909 for ARM64-based Systems",
"Windows Server, version 1909 (Server Core installation)",
"Windows 10 Version 2004 for 32-bit Systems",
"Windows 10 Version 2004 for ARM64-based Systems",
"Windows 10 Version 2004 for x64-based Systems",
"Windows Server, version 2004 (Server Core installation)"
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:.net:4.8:*:*:*:*:*:*:*"
],
"vendor": "Microsoft",
"product": "Microsoft .NET Framework 3.5 AND 4.8",
"versions": [
{
"status": "affected",
"version": "4.8.0",
"lessThan": "publication",
"versionType": "custom"
}
],
"platforms": [
"Windows Server 2019 (Server Core installation)",
"Windows Server 2019",
"Windows 10 Version 1809 for x64-based Systems",
"Windows 10 Version 1809 for 32-bit Systems"
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:.net:4.7.2:*:*:*:*:*:*:*"
],
"vendor": "Microsoft",
"product": "Microsoft .NET Framework 3.5 AND 4.7.2",
"versions": [
{
"status": "affected",
"version": "4.7.0",
"lessThan": "publication",
"versionType": "custom"
}
],
"platforms": [
"Windows Server 2019 (Server Core installation)",
"Windows 10 Version 1809 for ARM64-based Systems",
"Windows Server 2019",
"Windows 10 Version 1809 for 32-bit Systems",
"Windows 10 Version 1809 for x64-based Systems"
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:.net:2.0:sp2:*:*:*:*:*:*"
],
"vendor": "Microsoft",
"product": "Microsoft .NET Framework 2.0 Service Pack 2",
"versions": [
{
"status": "affected",
"version": "2.0.0",
"lessThan": "publication",
"versionType": "custom"
}
],
"platforms": [
"Windows Server 2008 for 32-bit Systems Service Pack 2",
"Windows Server 2008 for x64-based Systems Service Pack 2"
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:.net:3.5.1:*:*:*:*:*:*:*"
],
"vendor": "Microsoft",
"product": "Microsoft .NET Framework 3.5.1",
"versions": [
{
"status": "affected",
"version": "3.5.0",
"lessThan": "publication",
"versionType": "custom"
}
],
"platforms": [
"Windows 7 for x64-based Systems Service Pack 1",
"Windows 7 for 32-bit Systems Service Pack 1",
"Windows Server 2008 R2 for x64-based Systems Service Pack 1"
]
}
]
}
],
"published": "2020-08-17T19:15:14.083",
"references": [
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1046",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1046",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A remote code execution vulnerability exists when Microsoft .NET Framework processes input. An attacker who successfully exploited this vulnerability could take control of an affected system.\nTo exploit the vulnerability, an attacker would need to be able to upload a specially crafted file to a web application.\nThe security update addresses the vulnerability by correcting how .NET Framework processes input."
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de ejecución de código remota cuando Microsoft .NET Framework procesa una entrada, también se conoce como \".NET Framework Remote Code Execution Vulnerability\"."
}
],
"lastModified": "2026-06-17T03:00:19.010",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "42A6DF09-B8E1-414D-97E7-453566055279"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:sp2:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "66CAFDB7-9D41-4E67-AB83-5EB104551FF5"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "83B14968-3985-43C3-ACE5-8307196EFAE3"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "7CB85C75-4D35-480E-843D-60579EC75FCB"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3FB5CDAE-C713-4D9D-9D6A-2C2E8924A4BB"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E9273B95-20ED-4547-B0A8-95AD15B30372"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E93068DB-549B-45AB-8E5C-00EB5D8B5CF8"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C253A63F-03AB-41CB-A03A-B2674DEA98AA"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688"
},
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3EF7A75E-EE27-4AA7-8D84-9D696728A4CE"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6B8F3DD2-A145-4AF1-8545-CC42892DA3D1"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8EDC4407-7E92-4E60-82F0-0C87D1860D3A"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C2B1C231-DE19-4B8F-A4AA-5B3A65276E46"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
"vulnerable": false,
"matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "secure@microsoft.com"
}