Outlook 2013 Security Update for June 2021

News

A Security Update has been released for Outlook 2013. It resolves the following 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.

View: Download information for KB5001934

Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 2013 Click-To-Run and updates Outlook to version 15.0.5353.1000.


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Outlook for Microsoft 365 Apps Feature Update for May 2021

News

Microsoft released the May feature update of Outlook for Microsoft 365 Apps in the Current Channel (previously known as the Office 365 Monthly Channel).

There are no new features for Outlook this month but there are 4 highlighted fixes and an additional one was fixed with an in-between release last week.

  • We fixed an issue that caused some instructions for the “Shorten Meetings” feature to be disabled through screen reader technologies.
  • We fixed an issue that caused some users to experience Outlook closing unexpectedly when loading person cards.
  • We fixed an issue that caused the feedback option to be disabled for users of the Office Perpetual 2021 preview.
  • 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 UI
      • 1
        Legacy Room Finder UI
  • We fixed an issue that caused the people picker in Outlook to expand upwards rather than downwards for users with a perpetual license.

Note: Depending on your installation type, this update can be installed via the Update Now button in Outlook or the Microsoft Store and updates Outlook to: Version 2105 (Build 14026.20246).


Outlook 2016 / 2019 / 365 Update for May 2021

News

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 8 security updates for Access (1), Excel (5), Word (1) and Office (1).

In addition, it contains 1 documented non-security fix for Outlook Current Version 2104, 1 new feature and 10 fixes for Monthly Enterprise Version 2103, 1 fix for Monthly Enterprise Version 2102, 1 fix for Semi-Annual (Preview) Version 2102 and 1 fix for Semi-Annual Version 2008. Most notable fixes are;

  • 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 2103
    We fixed an issue that caused delegates to appear as the organizer of meetings created on newly added calendars. Meetings in this state did not appear on the principal’s calendar.
  • Version 2103
    We fixed an issue that caused users to see more signatures than expected. 
  • Version 2102
    This enables end users to configure Outlook to add an online meeting to every meeting they create.
  • Version 2008
    We fixed an issue that caused mails to be sent as digitally signed after the user unchecked that option.

The new feature in Monthly Enterprise Version 2103 is;

  • Break the language barrier with a built-in translator
    Add-ins for translation aren’t required anymore! You can now use the Intelligent Translator in Outlook. When you receive a message in another language, a prompt will appear on top of the message asking if you’d like Outlook to translate it to your default language. You can also right-click to translate specific words, phrases, or the whole message.

Based on your release channel, you’ll be updated to the following version;

  • Microsoft 365 Apps, Outlook 2016 Retail, Outlook 2019 Retail
    Version 2104 (Build 13929.20372)
  • Monthly Enterprise
    Version 2103 (Build 13901.20516)
    Version 2102 (Build 13801.20638)
  • Semi-Annual Enterprise (Preview)
    Version 2102 (Build 13801.20638)
  • Semi-Annual Enterprise
    Version 2008 (Build 13127.21624)
    Version 2002 (Build 12527.21912) 
  • Outlook 2019 Volume License
    Version 1808 (Build 10374.20040)

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.


Outlook 2016 (MSI) Update for May 2021

News

A Rollup Update has been released for Outlook 2016. This is a non-security update which contains the following documented fixes.

  • Fixes an issue that causes smart card authentication users to receive repeated authentication prompts from Outlook when disabling TLS 1.0.
  • Fixes an issue that causes the group policy for the “End appointments and meeting early” calendar option to no longer work.

View: Download information for KB5001921

Note: This update can be installed via Microsoft Update and updates Outlook to version 16.0.5161.1000. This update does not apply to Perpetual (Retail) and Microsoft 365 based installations of Office 2016.


Exchange 2019, 2016 and 2013 Security Updates for May 2021

News

Security updates have been released for Exchange 2013, Exchange 2016 and Exchange 2019.

The updates fixes the following Remote Code Execution Vulnerabilities;

Only CVE-2021-31207 is currently publicly disclosed but none of the them are exploited. The Exploitability Assessment is rated: Exploitation Less Likely.

View: Exchange Blog: Released: May 2021 Exchange Server Security Updates
View: Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: April 13, 2021 (KB5001779)

Download: Security Update for Exchange 2019 CU8 and CU9
Download: Security Update for Exchange 2016 CU19 and CU20
Download: Security Update for Exchange 2013 CU23


Outlook for Microsoft 365 Apps Feature Update for April 2021

News

Microsoft released the April feature update of Outlook for Microsoft 365 Apps in the Current Channel (previously known as the Office 365 Monthly Channel).

There are no new features for Outlook this month but there are 6 highlighted fixes.

  • We fixed an issue that caused users to experience Outlook closing unexpectedly when searching.
  • We fixed an issue that caused users to see signatures disappear unexpectedly.
  • We fixed an issue that could cause users to see the message that they are composing losing the UI focus.
  • We fixed an issue that caused Outlook to override the Focused Inbox preferences configured in OWA.
  • We fixed an issue that caused users of roaming settings to experience no response.
  • We fixed an issue that caused name resolution to fail when sending on behalf of another user and resolving against an address book that is not the Global Address List.

Note: Depending on your installation type, this update can be installed via the Update Now button in Outlook or the Microsoft Store and updates Outlook to: Version 2104 (Build 13929.20296).


Outlook 2016 / 2019 / 365 Update for April 2021

News

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 6 security updates for Excel (3), Outlook (1), Word (1) and Office (1).

The details about the Outlook vulnerability;

CVE-2021-28452: Microsoft Outlook Memory Corruption 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 3 documented non-security fixes for Outlook Current Version 2103, 4 new features and 8 fixes for Monthly Enterprise Version 2102, and 3 fixes for Semi-Annual (Preview) Version 2102 and 2 fixes for Semi-Annual Version 2008. Most notable fixes are;

  • Version 2103
    We fixed an issue that cause users to erroneously see a “This may take a while” message when adding a calendar.
  • Version 2103
    We fixed an issue that caused delegates to appear as the organizer of meetings created on newly added calendars. Meetings in this state did not appear on the principal’s calendar.
  • Version 2102
    We fixed an issue that caused Outlook to crash when idle.
  • Version 2102
    We fixed an issue that caused users to see more signatures than expected.
  • Version 2008
    We fixed an issue that caused users that have Shared or Delegated Mailboxes with large hierarchies in their profile to encounter hangs.

New features in Monthly Enterprise Version 2102 are;

  • Focused Inbox settings remain the same across devices
    Your Focused Inbox preferences are now stored in the cloud. Enjoy the same experience when you use Outlook for Windows on any computer and Outlook on the web.
  • Your Outlook settings in the cloud
    Choose your Outlook for Windows settings like Automatic Replies, Focused Inbox, and Privacy, and get to them on any PC.
  • Pick where to search
    The new search scope drop down allows you to more easily modify your search and switch between Current Folder and Current Mailbox. Thank you to everyone in Coming Soon who provided feedback on the new Search at Top experience. This design and update came out of that feedback!
  • Draft messages with your voice
    Use the new dictation toolbar, voice commands, auto-punctuation, and more to compose messages.

Based on your release channel, you’ll be updated to the following version;

  • Microsoft 365 Apps, Outlook 2016 Retail, Outlook 2019 Retail
    Version 2103 (Build 13901.20400)
  • Monthly Enterprise
    Version 2102 (Build 13801.20506)
    Version 2101 (Build 13628.20664)
  • Semi-Annual Enterprise (Preview)
    Version 2102 (Build 13801.20506)
  • Semi-Annual Enterprise
    Version 2008 (Build 13127.21506)
    Version 2002 (Build 12527.21814) 
  • Outlook 2019 Volume License
    Version 1808 (Build 10373.20050)

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.


Outlook 2016 (MSI) Security Update for April 2021

News

A Security Update has been released for Outlook 2016. It resolves the following vulnerability;

  • CVE-2021-28452: Microsoft Outlook Memory Corruption 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.

This update contains 2 additional fixes or improvements for non-security issues;

  • Fixes an issue that causes garbled email headers when Outlook uses the Chinese Simplified (GB2312) character set.
  • Fixes an issue that causes inline images to disappear when you reply to a message that has a protection label from Azure Information Protection.

View: Download information for KB4486748

Note: This update can be installed via Microsoft Update and updates Outlook to version 16.0.5149.1000. This update does not apply to Perpetual (Retail) and Microsoft 365 based installations of Office 2016.


Outlook 2013 Security Update for April 2021

News

A Security Update has been released for Outlook 2013. It resolves the following vulnerability;

  • CVE-2021-28452: Microsoft Outlook Memory Corruption 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.

View: Download information for KB4504733

Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 2013 Click-To-Run and updates Outlook to version 15.0.5337.1000.


Outlook 2010 Security Update for April 2021

News

A Security Update has been released for Outlook 2010. It resolves the following vulnerability;

  • CVE-2021-28452: Microsoft Outlook Memory Corruption 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.

Important!
This is an extra Security Update for Outlook 2010 as it has already reached the end date for Extended Support. It is highly recommended to update to a later version of Outlook or an alternative mail client as soon as possible.

View: Download information for KB4493185

Note: This update can be installed via Microsoft Update and updates Outlook to version 14.0.7268.5000.