CVE-2017-11779
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 33.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
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 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 33.10% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- microsoft/windows 10 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2012 · microsoft/windows server 2016
- Source
- secure@microsoft.com
EPSS moved from 25.4% on 21 September 2026 to 33.1% on 27 October 2026, peaking at 33.3% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/101166Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039533Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11779Patch, Vendor Advisory
- http://www.securityfocus.com/bid/101166Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039533Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11779Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.