CVE-2017-0283: Microsoft Lync

High severity, CVSS 8.8. EPSS: 39% chance of exploitation in the next 30 days.

Uniscribe in Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, Windows Server 2016, Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office Word Viewer, Microsoft Lync 2013 SP1, Skype for Business 2016, Microsoft Silverlight 5 Developer Runtime when installed on Microsoft Windows, and Microsoft Silverlight 5 when installed on Microsoft Windows allows a remote code execution vulnerability due to the way it handles objects in memory, aka "Windows Uniscribe Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8528.

Affected products

• Microsoft Lync: version 2013 only
• Microsoft Office: version 2007 only; version 2010 only
• Microsoft Office Word Viewer: affected versions not specified
• Microsoft Silverlight: version 5.0 only
• Microsoft Skype For Business: version 2016 only
• Microsoft Windows 10: any version; version 1511 only; version 1607 only; version 1703 only
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows 8.1: any version; version rt only
• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: affected versions not specified

Published 2017-06-15. Last modified 2026-06-17.