Microsoft teams has been experiencing a severe outage for several days, but it’s not entirely clear what the cause is.
Microsoft has not provided a reason for the outage, but some users have posted that it appears to be caused by a vulnerability in Microsoft’s Exchange software.
“We’re aware of an issue affecting some Exchange 2013 servers that we are working on a fix for,” Microsoft said in a statement.
“This issue will be resolved in the coming hours.
If you experience problems, please check back here for updates.”
The company added that it’s looking into the issue.
Microsoft’s Office team has also been affected by the outage.
“If you experience issues with Office Online and have been affected, please let us know,” Microsoft’s customer service team wrote in a blog post.
“Our team is currently working to resolve the issue as quickly as possible.
Please let us hear from you in the meantime.”
Microsoft also announced that it was rolling out a new update to Office 2013, fixing a number of issues.
“Office 2013 will be available on the Windows Insider Program today and we encourage you to sign up today to help us deliver this update,” Microsoft wrote.
“The latest release of Office 2013 includes significant fixes to Office Online, Office 2016 and Office 365.”
Microsoft has also added a new version of Office to the Windows Store, and it’s now available in the United States, Canada, and Europe.
Microsoft said it will update the Store to support Office 2013 on a future release of Windows.
Microsoft is working on an update for Outlook.com, as well.
Microsoft added that users who are affected by a Microsoft Exchange issue should be able to connect to Exchange 2013 via their Exchange Online portal.
Microsoft also said it is working to fix Outlook.org, as the issue affects a number users who have a Microsoft Account.
Microsoft wrote that it will continue to update the Exchange Online for Office apps and support for Exchange Online on Microsoft Outlook.
Microsoft will also add an option to download Office 2013 in the Windows 10 Creators Update to Office 365.
Microsoft noted that it is still working to identify the vulnerability in the Exchange Server 2013 software.
Microsoft isn’t releasing details about the affected Exchange servers.
The company is asking users to review the latest Office software and then to file a support ticket.
Microsoft doesn’t recommend using Exchange to communicate with Office 365 users.