CVE-2013-1302: Microsoft Lync

High severity, CVSS 9.3. EPSS: 21.9% chance of exploitation in the next 30 days.

Microsoft Communicator 2007 R2, Lync 2010, Lync 2010 Attendee, and Lync Server 2013 do not properly handle objects in memory, which allows remote attackers to execute arbitrary code via an invitation that triggers access to a deleted object, aka "Lync RCE Vulnerability."

Affected products

• Microsoft Lync: version 2010 only
• Microsoft Lync Server: version 2013 only
• Microsoft Office Communicator: version 2007 only

Published 2013-05-15. Last modified 2026-06-16.