A new rollup update has been made available for all Click-to-Run installations of Outlook 2016, Outlook 2019 and Outlook as part of a Microsoft 365 subscription.
It contains 5 security updates for Access (1), Excel (1), Outlook (1), and Office (2).
The details about the Outlook vulnerability;
- CVE-2021-31949: Microsoft Outlook Remote Code Execution Vulnerability.
- This vulnerability is currently not publicly disclosed nor exploited.
- The Preview Pane is not an attack vector.
- The Exploitability Assessment is rated: Exploitation Less Likely.
In addition, it contains 2 documented non-security fixes for Outlook Current Version 2103, 11 fixes for Monthly Enterprise Version 2104, and 6 fixes for Semi-Annual (Preview) Version 2102. Most notable fixes are;
- Version 2105
We fixed an issue that may cause Outlook to close unexpectedly when interacting with Mail or Calendar Views. - Version 2105
We fixed an issue that caused users to experience an unexpected close when removing folders from an archive store. - Version 2104
We fixed an issue that caused some users of the calendar sharing improvements feature to experience issues with interacting with their calendar in the navigation pane. - Version 2104
We fixed an issue that could cause users to see the message that they are composing losing the UI focus. - Version 2104 and 2102
We added a registry key that disables the new Room Finder experience (the same experience as in Outlook for Web) and enables the legacy Room Finder with Suggested Times.- Key:
HKCU\SOFTWARE\Microsoft\Office\16.0\Outlook\Options\Calendar - Value name:
ShowLegacyRoomFinder - Value type:
REG_DWORD - Value
0(Default)
New Room Finder UI1
Legacy Room Finder UI
- Key:
- Version 2102
Fixed an issue where end users and administrators were unable to turn on Cloud Settings.
Based on your release channel, you’ll be updated to the following version;
- Microsoft 365 Apps, Outlook 2016 Retail, Outlook 2019 Retail
Version 2105 (Build 14026.20270) - Monthly Enterprise
Version 2104 (Build 13929.20408)
Version 2103 (Build 13901.20554) - Semi-Annual Enterprise (Preview)
Version 2102 (Build 13801.20738) - Semi-Annual Enterprise
Version 2008 (Build 13127.21668)
Version 2002 (Build 12527.21952) - Outlook 2019 Volume License
Version 1808 (Build 10375.20036)
Note: Depending on your installation type, this update can be installed via the Update Now button in Outlook itself or the Microsoft Store. This update does not apply to msi-based installations of Office 2016.
