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Exchange Server update

apply lastest exchange server CU

Edit on GitHub

check exchange server version

PS C:\Windows\system32> Get-Command Exsetup.exe | ForEach-Object {$_.FileVersionInfo}                                                                                                                                                                                                                                                                                                                                                                                       ProductVersion   FileVersion      FileName                                                                                                                                                                                            --------------   -----------      --------                                                                                                                                                                                            15.02.1748.010   15.02.1748.010   C:\Program Files\Microsoft\Exchange Server\V15\bin\ExSetup.exe       

Released: October 2025 Exchange Server Security Updates | Microsoft Community Hub

Exchange Server build numbers and release dates | Microsoft Learn

download and run the script HealthChecker - Microsoft - CSS-Exchange

download the latest SU Download Security Update for Exchange Server 2019 CU15 SU3 (KB5063221) from Official Microsoft Download Center

PS > C:\Users\exchange\Downloads\HealthChecker.ps1

PS > C:\Users\exchange\Downloads\Exchange2019-KB5063221-x64-en.exe

update exchange server 1768034799923

restart server and run to validate the version

Get-Command Exsetup.exe | ForEach-Object {$_.FileVersionInfo}

update exchange server 1768043614960

if it failed try this script to run all exchange server services Restart Exchange services with PowerShell script - ALI TAJRAN