CVE-2017-11771

critical
Published 2017-10-13 · Modified 2026-05-13
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
10.0
VIR risk
9.8

Description

The Microsoft Windows Search component on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and 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 Search Remote Code Execution Vulnerability".

Predictions

Exploit likelihood
97%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: secure@microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11771

OS impact

OSVersionStatusFixed in
windows windows-affected
windows windows1511affected
windows windows1607affected
windows windows1703affected
windows windowsaffected
windows windowsr2affected

References

CWEs

CWE-20

Verify integrity in audit chain (admin only). AS-IS.