Technical Information

Brief overview of the risk:
This security update resolves three privately reported vulnerabilities in Microsoft Lync Server. The most severe of these vulnerabilities could allow denial of service if an attacker sends a specially crafted request to a Lync server.

Detailed Information on the risk:

A denial of service vulnerability exists in Lync Server. An attacker who successfully exploited this vulnerability could cause the affected system to stop responding.

Further information on this exploit is available at : MS14-055

Microsoft Lync Server 2010
Microsoft Lync Server 2013