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Fencer Intel
critical 9.8

CVE-2017-11899 json

Device Guard in Windows 10 1511, 1607, 1703 and 1709, Windows Server 2016 and Windows Server, version 1709 allows a security feature bypass…

published 2017-12-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3492

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Device Guard in Windows 10 1511, 1607, 1703 and 1709, Windows Server 2016 and Windows Server, version 1709 allows a security feature bypass vulnerability due to the way untrusted files are handled, aka "Microsoft Windows Security Feature Bypass Vulnerability".

Patch / fix

Exploit prediction

5.84% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Microsoft Corporation Device Guard

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.