CVE-2018-8345

LNK Remote Code Execution Vulnerability

CVE-2018-8345 is fixed in 31 products on 1 platform, first by KB4343887, released August 14, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
7.5
Critical
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1490
96th percentile

<p>A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.</p> <p>An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>The attacker could present to the user a removable drive, or remote share, that contains a malicious .LNK file and an associated malicious binary. When the user opens this drive(or remote share) in Windows Explorer, or any other application that parses the .LNK file, the malicious binary will execute code of the attacker’s choice, on the target system.</p> <p>The security update addresses the vulnerability by correcting the processing of shortcut LNK references.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for 32-bit Systems 14393.2430 KB4343887 Aug 14, 2018
Windows 10 Version 1607 for x64-based Systems 14393.2430 KB4343887 Aug 14, 2018
Windows 10 Version 1703 for 32-bit Systems 15063.1266 KB4343885 Aug 14, 2018
Windows 10 Version 1703 for x64-based Systems 15063.1266 KB4343885 Aug 14, 2018
Windows 10 Version 1709 for 32-bit Systems 16299.611 KB4343897 Aug 14, 2018
Windows 10 Version 1709 for x64-based Systems 16299.611 KB4343897 Aug 14, 2018
Windows 10 Version 1803 for 32-bit Systems 17134.228 KB4343909 Aug 14, 2018
Windows 10 Version 1803 for x64-based Systems 17134.228 KB4343909 Aug 14, 2018
Windows 10 for 32-bit Systems 10240.17946 KB4343892 Aug 14, 2018
Windows 10 for x64-based Systems 10240.17946 KB4343892 Aug 14, 2018
Windows 7 for 32-bit Systems Service Pack 1 KB4343899 Aug 14, 2018
Windows 7 for 32-bit Systems Service Pack 1 KB4343900 Aug 14, 2018
Windows 7 for x64-based Systems Service Pack 1 KB4343899 Aug 14, 2018
Windows 7 for x64-based Systems Service Pack 1 KB4343900 Aug 14, 2018
Windows 8.1 for 32-bit systems KB4343888 Aug 14, 2018
Windows 8.1 for 32-bit systems KB4343898 Aug 14, 2018
Windows 8.1 for x64-based systems KB4343888 Aug 14, 2018
Windows 8.1 for x64-based systems KB4343898 Aug 14, 2018
Windows RT 8.1 KB4343898 Aug 14, 2018
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4343899 Aug 14, 2018
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4343900 Aug 14, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4343899 Aug 14, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4343900 Aug 14, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4343899 Aug 14, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4343900 Aug 14, 2018
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4340939 Aug 14, 2018
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4340939 Aug 14, 2018
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4340939 Aug 14, 2018
Windows Server 2008 for x64-based Systems Service Pack 2 KB4340939 Aug 14, 2018
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4340939 Aug 14, 2018
Windows Server 2012 KB4343896 Aug 14, 2018
Windows Server 2012 KB4343901 Aug 14, 2018
Windows Server 2012 (Server Core installation) KB4343896 Aug 14, 2018
Windows Server 2012 (Server Core installation) KB4343901 Aug 14, 2018
Windows Server 2012 R2 KB4343888 Aug 14, 2018
Windows Server 2012 R2 KB4343898 Aug 14, 2018
Windows Server 2012 R2 (Server Core installation) KB4343888 Aug 14, 2018
Windows Server 2012 R2 (Server Core installation) KB4343898 Aug 14, 2018
Windows Server 2016 14393.2430 KB4343887 Aug 14, 2018
Windows Server 2016 (Server Core installation) 14393.2430 KB4343887 Aug 14, 2018
Windows Server, version 1709 (Server Core Installation) 16299.611 KB4343897 Aug 14, 2018
Windows Server, version 1803 (Server Core Installation) 17134.228 KB4343909 Aug 14, 2018