CVE-2018-8332

Win32k Graphics Remote Code Execution Vulnerability

CVE-2018-8332 is fixed in 31 products on 1 platform, first by KB4457131, released September 11, 2018. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
8.8
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1907
97th percentile

<p>A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. 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. 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>There are multiple ways an attacker could exploit this vulnerability.</p> <ul> <li><p>In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit this vulnerability and then convince a user to view the website. An attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by getting them to click a link in an email message or in an Instant Messenger message that takes users to the attacker's website, or by opening an attachment sent through email.</p> </li> <li><p>In a file sharing attack scenario, an attacker could provide a specially crafted document file that is designed to exploit this vulnerability, and then convince a user to open the document file.</p> </li> </ul> <p>The security update addresses the vulnerability by correcting how the Windows font library handles embedded fonts.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for 32-bit Systems 14393.2485 KB4457131 Sep 11, 2018
Windows 10 Version 1607 for x64-based Systems 14393.2485 KB4457131 Sep 11, 2018
Windows 10 Version 1703 for 32-bit Systems 15063.1324 KB4457138 Sep 11, 2018
Windows 10 Version 1703 for x64-based Systems 15063.1324 KB4457138 Sep 11, 2018
Windows 10 Version 1709 for 32-bit Systems 16299.665 KB4457142 Sep 11, 2018
Windows 10 Version 1709 for x64-based Systems 16299.665 KB4457142 Sep 11, 2018
Windows 10 Version 1803 for 32-bit Systems 17134.285 KB4457128 Sep 11, 2018
Windows 10 Version 1803 for x64-based Systems 17134.285 KB4457128 Sep 11, 2018
Windows 10 for 32-bit Systems 10240.17976 KB4457132 Sep 11, 2018
Windows 10 for x64-based Systems 10240.17976 KB4457132 Sep 11, 2018
Windows 7 for 32-bit Systems Service Pack 1 KB4457144 Sep 11, 2018
Windows 7 for 32-bit Systems Service Pack 1 KB4457145 Sep 11, 2018
Windows 7 for x64-based Systems Service Pack 1 KB4457144 Sep 11, 2018
Windows 7 for x64-based Systems Service Pack 1 KB4457145 Sep 11, 2018
Windows 8.1 for 32-bit systems KB4457129 Sep 11, 2018
Windows 8.1 for 32-bit systems KB4457143 Sep 11, 2018
Windows 8.1 for x64-based systems KB4457129 Sep 11, 2018
Windows 8.1 for x64-based systems KB4457143 Sep 11, 2018
Windows RT 8.1 KB4457129 Sep 11, 2018
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4457144 Sep 11, 2018
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4457145 Sep 11, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4457144 Sep 11, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4457145 Sep 11, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4457144 Sep 11, 2018
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4457145 Sep 11, 2018
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4457984 Sep 11, 2018
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4458010 Sep 11, 2018
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4457984 Sep 11, 2018
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4458010 Sep 11, 2018
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4457984 Sep 11, 2018
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4458010 Sep 11, 2018
Windows Server 2008 for x64-based Systems Service Pack 2 KB4457984 Sep 11, 2018
Windows Server 2008 for x64-based Systems Service Pack 2 KB4458010 Sep 11, 2018
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4457984 Sep 11, 2018
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4458010 Sep 11, 2018
Windows Server 2012 KB4457135 Sep 11, 2018
Windows Server 2012 KB4457140 Sep 11, 2018
Windows Server 2012 (Server Core installation) KB4457135 Sep 11, 2018
Windows Server 2012 (Server Core installation) KB4457140 Sep 11, 2018
Windows Server 2012 R2 KB4457129 Sep 11, 2018
Windows Server 2012 R2 KB4457143 Sep 11, 2018
Windows Server 2012 R2 (Server Core installation) KB4457129 Sep 11, 2018
Windows Server 2012 R2 (Server Core installation) KB4457143 Sep 11, 2018
Windows Server 2016 14393.2485 KB4457131 Sep 11, 2018
Windows Server 2016 (Server Core installation) 14393.2485 KB4457131 Sep 11, 2018
Windows Server, version 1709 (Server Core Installation) 16299.665 KB4457142 Sep 11, 2018
Windows Server, version 1803 (Server Core Installation) 17134.285 KB4457128 Sep 11, 2018