CVE-2017-8528

Windows Uniscribe Remote Code Execution Vulnerability

CVE-2017-8528 is fixed in 20 products on 1 platform, first by KB3191828, released June 13, 2017. 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
0.1989
97th percentile

<p>A remote code execution vulnerability exists due to the way Windows Uniscribe 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. 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 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 or instant 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 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 Windows Uniscribe handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Office 2007 Service Pack 3 KB3191828 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB3191848 Jun 13, 2017
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB3191848 Jun 13, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4022719 Jun 13, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4022722 Jun 13, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4022719 Jun 13, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4022722 Jun 13, 2017
Windows 8.1 for 32-bit systems KB4022717 Jun 13, 2017
Windows 8.1 for 32-bit systems KB4022726 Jun 13, 2017
Windows 8.1 for x64-based systems KB4022717 Jun 13, 2017
Windows 8.1 for x64-based systems KB4022726 Jun 13, 2017
Windows RT 8.1 KB4022726 Jun 13, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4022719 Jun 13, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4022722 Jun 13, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4022719 Jun 13, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4022722 Jun 13, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4022719 Jun 13, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4022722 Jun 13, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4022884 Jun 13, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4022884 Jun 13, 2017
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4022884 Jun 13, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 KB4022884 Jun 13, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4022884 Jun 13, 2017
Windows Server 2012 KB4022724 Jun 13, 2017
Windows Server 2012 KB4022718 Jun 13, 2017
Windows Server 2012 (Server Core installation) KB4022724 Jun 13, 2017
Windows Server 2012 (Server Core installation) KB4022718 Jun 13, 2017
Windows Server 2012 R2 KB4022717 Jun 13, 2017
Windows Server 2012 R2 KB4022726 Jun 13, 2017
Windows Server 2012 R2 (Server Core installation) KB4022717 Jun 13, 2017
Windows Server 2012 R2 (Server Core installation) KB4022726 Jun 13, 2017