Critical update which applies to SfB , Lync 2013. Ive seen lots of links flying flying around and searched MS so I’ve tried to put them all in one place. THIS IS CRITICAL UPDATE.

This security update resolves vulnerabilities in Microsoft Lync 2013. These vulnerabilities could allow remote code execution if a user opens a specially crafted document or goes to an untrusted webpage that contains embedded OpenType fonts. To learn more about the vulnerabilities, see Microsoft Security Bulletin MS15-097.

Lync and Skype for Business Update Centre is now updated with the September updates

https://technet.microsoft.com/en-us/office/dn788954.aspx

Lync 2013 / SfB Client Download link

https://support.microsoft.com/en-gb/kb/3085500

Lync 2013 Server CU Download

http://www.microsoft.com/en-us/download/details.aspx?id=48875

Lync 2010 Client

https://support.microsoft.com/en-us/kb/3081087

SfB Client updates has a number of changes and fixes listed below

Update changes the text label from "Skype call" to "Skype for Business call" in Skype for Business or Lync 2013 – https://support2.microsoft.com/kb/3088666/en-us?sd=rss&spid=924

Adds an AllowSavePassword Group Policy setting to remove the Save Password check box in Skype for Business or Lync 2013 – https://support2.microsoft.com/kb/3088665/en-us?sd=rss&spid=924

Non-ASCII characters are removed from search box in Skype for Business or Lync 2013 – https://support2.microsoft.com/kb/3088668/en-us?sd=rss&spid=924

Your phone numbers disappear when you expand a distribution group in contact list in Skype for Business or Lync 2013 – https://support2.microsoft.com/kb/3088669/en-us?sd=rss&spid=924

c0000005" error occurs and Skype for Business or Lync 2013 crashes when you upload a file to a persistent chat room – https://support2.microsoft.com/kb/3088667/en-us?sd=rss&spid=924

Skype for Business or Lync 2013 SDK provides the same window handle value for different PSTN conversation windows – https://support2.microsoft.com/kb/3088660/en-us?sd=rss&spid=924

Call transfer doesn’t transfer a call to the contact that you select in Skype for Business or Lync 2013 – https://support2.microsoft.com/kb/3088670/en-us?sd=rss&spid=924

The updated address book can’t be downloaded in Skype for Business or Lync 2013 – https://support.microsoft.com/en-us/kb/3088671

 

Also updates for Lync 2010 and Live meeting – https://support.microsoft.com/en-gb/kb/3089656

3085500 MS15-097: Description of the security update for Microsoft Lync 2013 (Skype for Business): September 8, 2015

3081087 MS15-097: Description of the security update for Lync 2010: September 8, 2015

3081088 MS15-097: Description of the security update for Lync 2010 Attendee (user-level installation): September 8, 2015

3081089 MS15-097: Description of the security update for Lync 2010 Attendee (administrator-level installation): September 8, 2015

3081090 MS15-097: Description of the security update for Live Meeting Console: September 8, 2015

3081091 MS15-097: Description of the security update for Live Meeting Conferencing Add-in: September 8, 2015