CVE-2017-8463

Windows Explorer Remote Code Execution Vulnerability

CVE-2017-8463 is fixed in 27 products on 1 platform, first by KB4025344, released July 11, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
6.3
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2050
97th percentile

<p>A remote code execution vulnerability exists when Windows Explorer improperly handles executable files and shares during rename operations. An attacker who successfully exploited this vulnerability could run arbitrary code in the context of another user. Users not running as administrators would be less affected.</p> <p>To exploit this vulnerability, an attacker would first share both a folder and malware named with an executable extension, and then trick the user into thinking that the malware was the folder. The attacker could not force the user to open or browse the share but could use email or instant messages to trick them into doing so.</p> <p>The update addresses the vulnerability by correcting how Windows Explorer handles executable files and shares during rename operations.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1511 for 32-bit Systems 10586.1007 KB4025344 Jul 11, 2017
Windows 10 Version 1511 for x64-based Systems 10586.1007 KB4025344 Jul 11, 2017
Windows 10 Version 1607 for 32-bit Systems 14393.1480 KB4025339 Jul 11, 2017
Windows 10 Version 1607 for x64-based Systems 14393.1480 KB4025339 Jul 11, 2017
Windows 10 Version 1703 for 32-bit Systems 15063.483 KB4025342 Jul 11, 2017
Windows 10 Version 1703 for x64-based Systems 15063.483 KB4025342 Jul 11, 2017
Windows 10 for 32-bit Systems 10240.17488 KB4025338 Jul 11, 2017
Windows 10 for x64-based Systems 10240.17488 KB4025338 Jul 11, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows 8.1 for 32-bit systems KB4025333 Jul 11, 2017
Windows 8.1 for 32-bit systems KB4025336 Jul 11, 2017
Windows 8.1 for x64-based systems KB4025333 Jul 11, 2017
Windows 8.1 for x64-based systems KB4025336 Jul 11, 2017
Windows RT 8.1 KB4025336 Jul 11, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4025341 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4025337 Jul 11, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4025497 Jul 11, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4025497 Jul 11, 2017
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4025497 Jul 11, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 KB4025497 Jul 11, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4025497 Jul 11, 2017
Windows Server 2012 KB4025343 Jul 11, 2017
Windows Server 2012 KB4025331 Jul 11, 2017
Windows Server 2012 (Server Core installation) KB4025343 Jul 11, 2017
Windows Server 2012 (Server Core installation) KB4025331 Jul 11, 2017
Windows Server 2012 R2 KB4025333 Jul 11, 2017
Windows Server 2012 R2 KB4025336 Jul 11, 2017
Windows Server 2012 R2 (Server Core installation) KB4025333 Jul 11, 2017
Windows Server 2012 R2 (Server Core installation) KB4025336 Jul 11, 2017
Windows Server 2016 14393.1480 KB4025339 Jul 11, 2017
Windows Server 2016 (Server Core installation) 14393.1480 KB4025339 Jul 11, 2017