CVE-2017-8620

Windows Search Remote Code Execution Vulnerability

CVE-2017-8620 is fixed in 27 products on 1 platform, first by KB4034660, released August 8, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
8.1
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.5733
99th percentile

<p>A remote code execution vulnerability exists when Windows Search handles objects in memory. An attacker who successfully exploited this vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>To exploit the vulnerability, the attacker could send specially crafted messages to the Windows Search service. An attacker with access to a target computer could exploit this vulnerability to elevate privileges and take control of the computer. Additionally, in an enterprise scenario, a remote unauthenticated attacker could remotely trigger the vulnerability through an SMB connection and then take control of a target computer.</p> <p>The security update addresses the vulnerability by correcting how Windows Search handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1511 for 32-bit Systems 10586.1045 KB4034660 Aug 8, 2017
Windows 10 Version 1511 for x64-based Systems 10586.1045 KB4034660 Aug 8, 2017
Windows 10 Version 1607 for 32-bit Systems 14393.1593 KB4034658 Aug 8, 2017
Windows 10 Version 1607 for x64-based Systems 14393.1593 KB4034658 Aug 8, 2017
Windows 10 Version 1703 for 32-bit Systems 15063.540 KB4034674 Aug 8, 2017
Windows 10 Version 1703 for x64-based Systems 15063.540 KB4034674 Aug 8, 2017
Windows 10 for 32-bit Systems 10240.17533 KB4034668 Aug 8, 2017
Windows 10 for x64-based Systems 10240.17533 KB4034668 Aug 8, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4034679 Aug 8, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4034664 Aug 8, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4034679 Aug 8, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4034664 Aug 8, 2017
Windows 8.1 for 32-bit systems KB4034672 Aug 8, 2017
Windows 8.1 for 32-bit systems KB4034681 Aug 8, 2017
Windows 8.1 for x64-based systems KB4034672 Aug 8, 2017
Windows 8.1 for x64-based systems KB4034681 Aug 8, 2017
Windows RT 8.1 KB4034681 Aug 8, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4034679 Aug 8, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4034664 Aug 8, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4034679 Aug 8, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4034664 Aug 8, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4034679 Aug 8, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4034664 Aug 8, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4034034 Aug 8, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4034034 Aug 8, 2017
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4034034 Aug 8, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 KB4034034 Aug 8, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4034034 Aug 8, 2017
Windows Server 2012 KB4034666 Aug 8, 2017
Windows Server 2012 KB4034665 Aug 8, 2017
Windows Server 2012 (Server Core installation) KB4034666 Aug 8, 2017
Windows Server 2012 (Server Core installation) KB4034665 Aug 8, 2017
Windows Server 2012 R2 KB4034672 Aug 8, 2017
Windows Server 2012 R2 KB4034681 Aug 8, 2017
Windows Server 2012 R2 (Server Core installation) KB4034672 Aug 8, 2017
Windows Server 2012 R2 (Server Core installation) KB4034681 Aug 8, 2017
Windows Server 2016 14393.1593 KB4034658 Aug 8, 2017
Windows Server 2016 (Server Core installation) 14393.1593 KB4034658 Aug 8, 2017