May 2018 updates for Microsoft Office

Applies to: Microsoft Office Online ServerExchange Server 2016 Enterprise EditionOffice Web Apps Server 2013 More

Microsoft released the following security and nonsecurity updates for Office in May 2018. These updates are intended to help our customers keep their computers up-to-date. We recommend that you install all updates that apply to you.

To download an update, click the corresponding Knowledge Base article in the following list, and then go to the "How to download and install the update" section of the article.

List of Office updates released in May 2018


Microsoft SharePoint Server 2016

Product Knowledge Base article title and number
Office Online Server May 8, 2018, update for Office Online Server (KB4011025)
SharePoint Enterprise Server 2016 May 8, 2018, update for SharePoint Enterprise Server 2016 (KB4018386)
SharePoint Enterprise Server 2016 Description of the security update for SharePoint Enterprise Server 2016: May 8, 2018 (KB4018381)

Microsoft SharePoint Server 2013

Product Knowledge Base article title and number
Office Web Apps Server 2013 Description of the security update for Office Web Apps Server 2013: May 8, 2018 (KB4018393)
Project Server 2013 May 8, 2018, cumulative update for Project Server 2013 (KB4018395)
Project Server 2013 Description of the security update for Project Server 2013: May 8, 2018 (KB4022130)
SharePoint Enterprise Server 2013 May 8, 2018, cumulative update for SharePoint Enterprise Server 2013 (KB4018397)
SharePoint Enterprise Server 2013 Description of the security update for SharePoint Enterprise Server 2013: May 8, 2018 (KB4018390)
SharePoint Enterprise Server 2013 Description of the security update for SharePoint Enterprise Server 2013: May 8, 2018 (KB4018388)
SharePoint Foundation 2013 May 8, 2018, cumulative update for SharePoint Foundation 2013 (KB4018394)
SharePoint Foundation 2013 Description of the security update for SharePoint Foundation 2013: May 8, 2018 (KB4018398)

Microsoft SharePoint Server 2010

Product Knowledge Base article title and number
Project Server 2010 May 8, 2018, cumulative update for Project Server 2010 (KB4022140)
Project Server 2010 Description of the security update for Project Server 2010: May 8, 2018 (KB3114889)
SharePoint Server 2010 May 8, 2018, cumulative update for SharePoint Server 2010 (KB4022143)
SharePoint Server 2010 Description of the security update for SharePoint Server 2010: May 8, 2018 (KB4022145)
SharePoint Server 2010 Description of the security update for SharePoint Server 2010: May 8, 2018 (KB4022135)
SharePoint Server 2010 Description of the security update for SharePoint Server 2010 Office Web Apps: May 8, 2018 (KB4022142)

Microsoft Office 2016

Product Knowledge Base article title and number
Excel 2016 Description of the security update for Excel 2016: May 8, 2018 (KB4018382)
Office 2016 May 1, 2018, update for Office 2016 (KB3203479)
Office 2016 May 1, 2018, update for Office 2016 (KB4011634)
Office 2016 May 1, 2018, update for Office 2016 (KB4018318)
Office 2016 May 1, 2018, update for Office 2016 (KB4018369)
Office 2016 May 1, 2018, update for Office 2016 (KB4022133)
Office 2016 Description of the security update for Office 2016: May 8, 2018 (KB4011237)
Office 2016 Description of the security update for Office 2016: May 8, 2018 (KB4011239)
Office 2016 Description of the security update for Office 2016: May 8, 2018 (KB4018327)
OneNote 2016 May 1, 2018, update for OneNote 2016 (KB4018321)
Outlook 2016 May 1, 2018, update for Outlook 2016 (KB4018372)
Project 2016 May 1, 2018, update for Project 2016 (KB4018373)
Skype for Business 2016 May 1, 2018, update for Skype for Business 2016 (KB4018367)
Word 2016 Description of the security update for Word 2016: May 8, 2018 (KB4018383)

Microsoft Office 2013

Product Knowledge Base article title and number
Excel 2013 Description of the security update for Excel 2013: May 8, 2018 (KB4018399)
InfoPath 2013 Description of the security update for InfoPath 2013: May 8, 2018 (KB3162075)
Office 2013 May 1, 2018, update for Office 2013 (KB4018389)
Office 2013 Description of the security update for Office 2013: May 8, 2018 (KB4011253)
Office 2013 Description of the security update for Office 2013: May 8, 2018 (KB4011254)
Office 2013 Description of the security update for Office 2013: May 8, 2018 (KB3172436)
OneNote 2013 May 1, 2018, update for OneNote 2013 (KB4011281)
Outlook 2013 May 1, 2018, update for Outlook 2013 (KB4018376)
Project 2013 May 1, 2018, update for Project 2013 (KB4018379)
Skype for Business 2015 (Lync 2013) May 1, 2018, update for Skype for Business 2015 (Lync 2013) (KB4018377)
Word 2013 Description of the security update for Word 2013: May 8, 2018 (KB4018396)

Microsoft Office 2010

Product Knowledge Base article title and number
Excel 2010 Description of the security update for Excel 2010: May 8, 2018 (KB4022146)
Office 2010 Description of the security update for Office 2010: May 8, 2018 (KB4011274)
Office 2010 Description of the security update for Office 2010: May 8, 2018 (KB4011275)
Office 2010 Description of the security update for Office 2010: May 8, 2018 (KB4022139)
Office 2010 Description of the security update for Office 2010: May 8, 2018 (KB4022137)
Office 2010 Description of the security update for Office 2010: May 8, 2018 (KB2899590)
Outlook 2010 May 1, 2018, update for Outlook 2010 (KB4022144)
Word 2010 Description of the security update for Word 2010: May 8, 2018 (KB4022141)

Other Office Products

Product Knowledge Base article title and number
Office Compatibility Pack Description of the security update for Microsoft Office Compatibility Pack Service Pack 3: May 8, 2018 (KB4022150)
Office Viewers and Office Compatibility Pack Description of the security update for Microsoft Office Viewers and Office Compatibility Pack: May 8, 2018 (KB4018308)