CVE-2017-11779
Status: ModifiedHigh (8.1)—
The Microsoft Windows Domain Name System (DNS) DNSAPI.dll on Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows a remote code execution vulnerability when it fails to properly handle DNS responses, aka "Windows DNSAPI Remote Code Execution Vulnerability".
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Base score: 8.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 33%
- Percentile among all scored CVEs: 98
- Score date: 10/10/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (5)
CWEs
- NVD-CWE-noinfo
References
- http://www.securityfocus.com/bid/101166
- http://www.securitytracker.com/id/1039533
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11779
- http://www.securityfocus.com/bid/101166
- http://www.securitytracker.com/id/1039533
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11779
Raw JSON (NVD)
Show
{
"id": "CVE-2017-11779",
"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": false
}
],
"cvssMetricV30": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 8.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.2
}
]
},
"affected": [
{
"source": "secure@microsoft.com",
"affectedData": [
{
"vendor": "Microsoft Corporation",
"product": "Windows Domain Name System (DNS)",
"versions": [
{
"status": "affected",
"version": "Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016"
}
]
}
]
}
],
"published": "2017-10-13T13:29:00.567",
"references": [
{
"url": "http://www.securityfocus.com/bid/101166",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "secure@microsoft.com"
},
{
"url": "http://www.securitytracker.com/id/1039533",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11779",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "secure@microsoft.com"
},
{
"url": "http://www.securityfocus.com/bid/101166",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securitytracker.com/id/1039533",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11779",
"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": "The Microsoft Windows Domain Name System (DNS) DNSAPI.dll on Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows a remote code execution vulnerability when it fails to properly handle DNS responses, aka \"Windows DNSAPI Remote Code Execution Vulnerability\"."
},
{
"lang": "es",
"value": "Microsoft Windows Domain Name System (DNS) DNSAPI.dll en Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607 y 1703 y Windows Server 2016 permite una vulnerabilidad de ejecución remota de código cuando no gestiona correctamente respuestas DNS. Esto también se conoce como \"Windows DNSAPI Remote Code Execution Vulnerability\"."
}
],
"lastModified": "2026-06-17T01:02:21.370",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "232581CC-130A-4C62-A7E9-2EC9A9364D53"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AEE2E768-0F45-46E1-B6D7-087917109D98"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A7F51B5F-AA19-4D31-89FA-6DFAC4BA8F0F"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "197E82CB-81AF-40F1-A55C-7B596891A783"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AF6437F9-6631-49D3-A6C2-62329E278E31"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secure@microsoft.com"
}