October 2021 Security updates for Microsoft Exchange Server

October 2021 Security updates for Microsoft Exchange Server 2019, 2016 and 2013 have been released
Updates resolve Remote Code Execution and other Vulnerabilities:
  • Security Update For Exchange Server 2019 CU11
  • Security Update For Exchange Server 2019 CU10
  • Security Update For Exchange Server 2016 CU22
  • Security Update For Exchange Server 2016 CU21
  • Security Update For Exchange Server 2013 CU23
Exchange Team Blog Post
Advertisement

September 2021 Updates for Microsoft Exchange Server 2019 and 2016

September 2021 Updates for Microsoft Exchange Server 2019 and 2016 have been released
CU11 for Exchange Server 2019 (KB5005334) CU22 for Exchange Server 2016 (KB5005333)

Additional Information:
Exchange Team Blog Post
New Security Feature that ships with the updates

July 2021 Security updates for Microsoft Exchange Server

July 2021 Security updates for Microsoft Exchange Server 2019, 2016 and 2013 have been released
Updates resolve Remote Code Execution and Elevation of Privilege Vulnerabilities:
  • Security Update For Exchange Server 2019 CU10
  • Security Update For Exchange Server 2019 CU9
  • Security Update For Exchange Server 2016 CU21
  • Security Update For Exchange Server 2016 CU20
  • Security Update For Exchange Server 2013 CU23
Exchange Team Blog Post

May 2021 Exchange Server Security Updates

May 2021 Security update for Microsoft Exchange Server 2019, 2016 and 2013 has been released:
Description: KB5003435
Update resolves Microsoft Exchange Server Remote Code Execution Vulnerabilities: Downloads: Exchange Team Blog Post

April 2021 Exchange Server Security Updates

Security update for Microsoft Exchange Server 2019, 2016 and 2013 has been released:
Description: KB5001779
Update resolves Microsoft Exchange Server Remote Code Execution Vulnerabilities: Downloads: