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Security Patch for Veeam Backup & Replication: Update to Build 12.3.2.4165

  • October 15, 2025
  • 23 comments
  • 2330 views

Iams3le
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Due to the following questions below, I have decided to create an article to show the steps on how to patch Veeam Backup and replication from build 12.3.2.3617 to 12.3.2.4165

To summarize the steps, you first have to determine the installed build. This can be found in the Veeam Backup & Replication Console’s Main Menu (≡) under Help > About as shown below.

I am already running on Build 12.3.2.3617.

This patch is available as an ISO or EXE. The EXE is intended ONLY for patching existing deployments of Veeam Backup & Replication 12.3.2 (build 12.3.2.3617). When you try the ISO in this case, you will be prompted to modify or uninstall your existing installation of Veeam Backup and Replication which is a dangerous thing to do. Also, you can use the ISO for new deployments of Veeam Backup & Replication 12.3.2.4165.


Already on 12.3.2.3617? 

Download the EXE below. The update patch can be downloaded here.

 

 

Note: For upgrading existing deployments of VBR (11a, 12, 12.1, 12.2, 12.3.0, or 12.3.1) to 12.3.2.4165. You have to use the ISO as shown below. use the ISO below. 

 

 

 

Note: The ISO can be used for new deployment of VBR 12.3.2.4165.

 

Update Process

Launch the executable as shown below

Walk through the update process

Accept license

click on install 

We have successfully patched our VBR server

Reboot when promptd

Veeam Component Update

After the main update is installed, Veeam runs a Component Update process to ensure that all associated components across the environment are brought to the same version as the updated backup server.

During this phase, Veeam automatically detects connected components such as backup proxies, repository servers, WAN accelerators, and transport services and updates them to match the newly installed build. Take a look at this guide for more information: Patch Veeam Backup and replication 12.3.2.3617 to 12.3.2.4165 - TechDirectArchive

23 comments

Chris.Childerhose
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  • Veeam Legend, Veeam Vanguard
  • 9569 comments
  • October 15, 2025

This was such an easy patch with the EXE format.  Will need to try the ISO one too.  Great article 👍


Iams3le
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  • Author
  • Veeam Legend
  • 1545 comments
  • October 15, 2025

This was such an easy patch with the EXE format.  Will need to try the ISO one too.  Great article 👍

I agree, but it will not work for this build 12.3.2.3617.


Jean.peres.bkp
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  • Veeam Legend
  • 161 comments
  • October 15, 2025

Very good!

 

It will help internal teams stay informed about updates. Thank you!


Chris.Childerhose
Forum|alt.badge.img+21
  • Veeam Legend, Veeam Vanguard
  • 9569 comments
  • October 15, 2025

This was such an easy patch with the EXE format.  Will need to try the ISO one too.  Great article 👍

I agree, but it will not work for this build 12.3.2.3617.

Yes the ISO patch will work for this build.  There is two patch options - ISO or EXE

 


Link State
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  • Veeam Legend
  • 686 comments
  • October 16, 2025

 

There seems to be a problem with the EM update. Using the ISO and exe patch did not upgrade EM, as verified from the web console.

 

If I use the full ISO, it says that all components are already updated to the latest version.

 

Using this command results in an update; it is a cosmetic bug.

(Get-Item "C:\Program Files\Veeam\Backup and Replication\Enterprise Manager\Veeam.Backup.EnterpriseService.exe").VersionInfo | 
Select-Object ProductVersion, FileVersion

 

 


Iams3le
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  • Author
  • Veeam Legend
  • 1545 comments
  • October 16, 2025

 

There seems to be a problem with the EM update. Using the ISO and exe patch did not upgrade EM, as verified from the web console.

 

If I use the full ISO, it says that all components are already updated to the latest version.

 

Using this command results in an update; it is a cosmetic bug.

(Get-Item "C:\Program Files\Veeam\Backup and Replication\Enterprise Manager\Veeam.Backup.EnterpriseService.exe").VersionInfo | 
Select-Object ProductVersion, FileVersion

 

Thank you very much for enriching this post with this vital workaround. Cheers!


Chris.Childerhose
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  • Veeam Legend, Veeam Vanguard
  • 9569 comments
  • October 16, 2025

Confirmed cosmetic but it should get reported though via the Forums.


waqasali
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  • Influencer
  • 399 comments
  • October 16, 2025

thank you for sharing this i will see this security patch update. 


Link State
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  • Veeam Legend
  • 686 comments
  • October 16, 2025

@Rick Vanover ​@Madi.Cristil  I would like to report the discovery of this cosmetic bug. Could you please inform the relevant developers?

Bug of updage the Veeam Enterprise Manager to v12.3.2.4165? | Veeam Community Resource Hub


Thank you.


Madi.Cristil
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  • Community Manager
  • 643 comments
  • October 16, 2025

@Rick Vanover ​@Madi.Cristil  I would like to report the discovery of this cosmetic bug. Could you please inform the relevant developers?

Bug of updage the Veeam Enterprise Manager to v12.3.2.4165? | Veeam Community Resource Hub


Thank you.

Hi ​@HannesK and ​@Mildur can you help with this one?Thank you!


Link State
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  • Veeam Legend
  • 686 comments
  • October 16, 2025

Perhaps some components have simply not been updated here?

 

 


Mildur
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  • Influencer
  • 1070 comments
  • October 17, 2025

The patch has a size of 660 MB. Only affected components will be updated. You can check the installation folder and see that only a few binaries are replaced by the patch. Or extract the content of the patch exe with 7zip to check which files will be patched.

However, I agree that it does look odd the old version is still listed. It can be confusing. 
 

Best regards,
Fabian


  • New Here
  • 1 comment
  • October 20, 2025

I found the .iso would not “upgrade” and only allow modify requiring an uninstall.  So I went to the .exe and all went fast and well.   One more thing is this vulnerability also affects windows agents, so why isn’t this update including the agent update install file to push via VBR?  I have to manually do the Agent install.


Link State
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  • Veeam Legend
  • 686 comments
  • October 21, 2025

hi ​@joltser        

I performed the upgrade with the 1.6 GB patch ISO VeeamBackup&Replication_12.3.2.4165_20251006_patch.iso

However, I confirm that the installed version of Windows Agent Microsoft Windows is 6.3.2.1205.

The KB does not explicitly state that the VBR 12.3.2.4165 patch installer automatically updates all installed versions of ‘Veeam Agent for Microsoft Windows’ to build 6.3.2.1302.

It is possible that the Agent needs to be updated separately or that the patch for VBR prompts you to manually update the Agent.

 

KB4771: Vulnerabilities Resolved in Veeam Backup & Replication 12.3.2.4165 Patch

At this link you will find new agent

KB2683: Build Numbers and Versions of Veeam Agent for Microsoft Windows

Here you will find a private fix

KB4778: Veeam Agent for Microsoft Windows 6.3.2.1302 Private Fix Deployment Information

 The full ISO probably also updates Windows Agent to the latest version.          

Regards 


Link State
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  • Veeam Legend
  • 686 comments
  • October 21, 2025

Hi, I'm leaving the command to check the various builds of the services\exe veeam post update latest patch.

Get-ChildItem "C:\Program Files\Veeam" -Recurse -Filter *.exe |
Where-Object { $_.Name -like "Veeam*.exe" } |
Select-Object Name, @{Name='Version';Expression={$_.VersionInfo.ProductVersion}} |
Sort-Object Name |
Format-Table -AutoSize

Name                                                   Version                                            
----                                                   -------                                            
Veeam.ActiveDirectory.Explorer.exe                     12.4.5.0                                           
Veeam.AHV.Configuration.Updater.exe                    12.7.1.12                                          
Veeam.AHV.Service.exe                                  12.7.1.12                                          
Veeam.Azure.PlatformSvc.exe                            12.8.0.293                                         
Veeam.Backup.Agent.ConfigurationService.exe            12.3.2.3617                                        
Veeam.Backup.BrokerService.exe                         12.3.2.4165                                        
Veeam.Backup.CatalogCrawlJob.exe                       12.3.2.3617                                        
Veeam.Backup.CatalogDataService.exe                    12.3.2.3617                                        
Veeam.Backup.CatalogReplicationJob.exe                 12.3.2.3617                                        
Veeam.Backup.Cdp.Service.exe                           12.3.2.4165                                        
Veeam.Backup.CloudService.exe                          12.3.2.4165                                        
Veeam.Backup.Configuration.Restore.exe                 12.3.2.4165                                        
Veeam.Backup.Configuration.Tool.exe                    12.3.2.4165                                        
Veeam.Backup.Configuration.Tool.exe                    12.3.2.4165                                        
Veeam.Backup.Configuration.UnattendedRestore.exe       12.3.2.4165                                        
Veeam.Backup.ConnectionTester.exe                      12.3.2.4165                                        
Veeam.Backup.DataAnalyzerService.exe                   12.3.2.4165                                        
Veeam.Backup.DBConfig.exe                              12.3.2.4165                                        
Veeam.Backup.Enterprise.RestAPIService.exe             12.3.2.4165                                        
Veeam.Backup.Enterprise.SecScopesRebuildJob.exe        12.3.2.3617                                        
Veeam.Backup.Enterprise.WmiServer.exe                  12.3.2.3617                                        
Veeam.Backup.EnterpriseService.exe                     12.3.2.4165                                        
Veeam.Backup.ExternalInfrastructure.DbProvider.exe     12.3.2.4165                                        
Veeam.Backup.Extractor.exe                             12.3.2.4165                                        
Veeam.Backup.Extractor.exe                             12.3.2.4165                                        
Veeam.Backup.Fex.exe                                   12.3.2.4165                                        
Veeam.Backup.Fex.exe                                   12.3.2.4165                                        
Veeam.Backup.HvVmConnect.exe                           12.3.2.4165                                        
Veeam.Backup.HvVmConnect.exe                           12.3.2.4165                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         11.0.0.1152                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.0.0.67                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         10.0.2.4856                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         10.0.2.4855                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         10.0.2.4855                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.3.0.6                                           
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.3.0.8                                           
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         10.0.2.4856                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.0.0.67                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         11.0.0.1152                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         10.0.2.4855                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         10.0.2.4856                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         11.0.0.1152                                        
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.0.0.67                                          
Veeam.Backup.Interaction.Explorer.Launcher.exe         12.1.0.44                                          
Veeam.Backup.Localization.PoConverter.exe              12.3.2.3617                                        
Veeam.Backup.Manager.exe                               12.3.2.4165                                        
Veeam.Backup.ManagerGCServer.exe                       12.3.2.4165                                        
Veeam.Backup.PlatformServices.Kasten.exe               12.1.4.15+a7979b7061761b6a923fc99679e7c837930af69a 
Veeam.Backup.PSManager.exe                             12.3.2.4165                                        
Veeam.Backup.PSManager.exe                             12.3.2.4165                                        
Veeam.Backup.RestAPIService.exe                        12.3.2.4165                                        
Veeam.Backup.Satellite.exe                             12.3.2.4165                                        
Veeam.Backup.Service.exe                               12.3.2.4165                                        
Veeam.Backup.Setup.Service.exe                         12.3.2.4165                                        
veeam.backup.shell.exe                                 12.3.2.4165                                        
Veeam.Backup.Shell.exe                                 12.3.2.4165                                        
Veeam.Backup.UIServer.exe                              12.3.2.4165                                        
Veeam.Backup.Validator.exe                             12.3.2.4165                                        
Veeam.Backup.Validator.exe                             12.3.2.4165                                        
Veeam.Backup.Validator.exe                             12.3.2.4165                                        
Veeam.Backup.WmiServer.exe                             12.3.2.4165                                        
Veeam.CloudBackup.PlatformService.exe                  12.9.0.281                                         
Veeam.EM.DB.Migration.exe                              12.3.2.3617                                        
Veeam.Exchange.Explorer.exe                            12.1.0.0                                           
Veeam.Exchange.Web.exe                                 12.1.0.0                                           
Veeam.Explorer.Launcher.exe                            12.4.2.0                                           
Veeam.Explorer.Launcher.exe                            12.1.0.0                                           
Veeam.Explorer.Launcher.exe                            12.4.5.0                                           
Veeam.Explorer.Launcher.exe                            12.1.0.0                                           
Veeam.Explorer.Launcher.exe                            12.1.0.0                                           
Veeam.Explorer.Launcher.exe                            12.4.1.0                                           
Veeam.Explorer.Launcher.exe                            12.4.5.0                                           
Veeam.Explorer.Launcher.exe                            12.4.5.0                                           
Veeam.GCP.PlatformService.WebService.exe               12.6.1.10+543cd38de150e265f26e5e779f11fc866ac17c55 
Veeam.MongoDB.Explorer.exe                             12.4.0.0                                           
Veeam.One.Agent.Deployment.Service.exe                 11.0.1.1880                                        
Veeam.One.Agent.Service.exe                            11.0.1.1880                                        
Veeam.One.Agent.Updater.exe                            11.0.1.1880                                        
Veeam.OneDrive.Explorer.exe                            12.1.0.0                                           
Veeam.Oracle.Explorer.exe                              12.4.5.0                                           
Veeam.Oracle.Service.exe                               12.4.5.0                                           
Veeam.Oracle.Service.exe                               12.4.5.0                                           
Veeam.PostgreSQL.Explorer.exe                          12.4.2.0                                           
Veeam.Powershell.exe                                   12.3.2.3617                                        
Veeam.PVE.Configuration.Updater.exe                    12.1.3.217+56fac1f707da2bad8bfd91f269da21738200dda3
Veeam.PVE.Service.exe                                  12.1.3.217+56fac1f707da2bad8bfd91f269da21738200dda3
Veeam.RHV.Configuration.Updater.exe                    12.6.2.6                                           
Veeam.RHV.Service.exe                                  12.6.2.6                                           
Veeam.SapHana.Explorer.exe                             12.4.1.0                                           
Veeam.Setup.ConsoleUpdater.exe                         12.3.2.4165                                        
Veeam.Setup.ConsoleUpdaterBootstrap.exe                12.3.2.3617                                        
Veeam.SharePoint.Explorer.exe                          12.1.0.0                                           
Veeam.SQL.Explorer.exe                                 12.4.5.0                                           
Veeam.SQL.Service.exe                                  12.4.5.0                                           
Veeam.Teams.Explorer.exe                               12.1.0.0                                           
Veeam.ThreatHunterService.exe                          12.3.2.4165                                        
Veeam.Tools.UpdateUI.exe                               2.0.2+04b1724384942a8fe6b10d96827d54ea2d0649d8     
Veeam.Tools.UpdateUI.exe                               2.0.2+04b1724384942a8fe6b10d96827d54ea2d0649d8     
Veeam.Tools.UpdateUI.exe                               2.0.2+04b1724384942a8fe6b10d96827d54ea2d0649d8     
Veeam.Tools.UpdateWarden.exe                           2.0.4+ec285c23a1d8505f5b0d38872d25de11fe6a829d     
Veeam.Tools.UpdateWarden.exe                           2.0.4+ec285c23a1d8505f5b0d38872d25de11fe6a829d     
Veeam.Tools.UpdateWarden.exe                           2.0.4+ec285c23a1d8505f5b0d38872d25de11fe6a829d     
Veeam.Vbf.BsCommunicationAgent.exe                     12.1.3.217+56fac1f707da2bad8bfd91f269da21738200dda3
Veeam.VSS.SharePoint2010.exe                           12.3.2.3617                                        
Veeam.VSS.SharePoint2013.exe                           12.3.2.3617                                        
Veeam.VSS.SharePoint2016.exe                           12.3.2.3617                                        
Veeam.VSS.SharePoint2019.exe                           12.3.2.3617                                        
Veeam.VSS.SharePointSubscriptionEdition.exe            12.3.2.3617                                        
Veeam.VssHwSnapshotProvider.exe                        6.3.2.1205                                         
veeam_backup_6.3.2.1205_PrivateFix_TF1076569.exe       6.3.2.1205                                         
VeeamAgent.exe                                         12.3.2.4165                                        
VeeamAgent.exe                                         12.3.2.4165                                        
VeeamAgent.exe                                         12.3.2.4165                                        
VeeamAgent.exe                                         12.3.2.4165                                        
VeeamAuth.exe                                          12.0.0.4                                           
VeeamAuth.exe                                          12.0.0.4                                           
VeeamAuth.exe                                          12.0.0.4                                           
VeeamAuth.exe                                          12.3.2.3617                                        
VeeamAuth.exe                                          12.0.0.4                                           
VeeamAuth.exe                                          12.0.0.4                                           
VeeamAuth.exe                                          12.0.0.4                                           
VeeamAuth.exe                                          12.0.0.4                                           
VeeamBackup&Replication_12.3.2.4165_patch_20251006.exe 12.3.2.4165                                        
VeeamCloudMsgService.exe                               1.10.0.1312                                        
VeeamCloudMsgService.exe                               1.10.0.1312                                        
VeeamDeploymentSvc.exe                                 12.3.2.3617                                        
VeeamDeploymentSvc.exe                                 12.3.2.3617                                        
VeeamDeploymentSvc.exe                                 12.3.2.3617                                        
VeeamDeploymentSvc.exe                                 12.3.2.3617                                        
VeeamDeploymentSvc.exe                                 12.3.2.3617                                        
VeeamDeploymentSvc.exe                                 12.3.2.3617                                        
VeeamFilesysVssSvc.exe                                 12.3.0.310                                         
VeeamGuestHelper.exe                                   12.3.2.3617                                        
VeeamGuestHelper.exe                                   12.3.2.3617                                        
VeeamGuestHelperCtrl.exe                               12.3.2.3617                                        
VeeamGuestIndexer.exe                                  12.3.2.3617                                        
VeeamGuestIndexer.exe                                  12.3.2.3617                                        
VeeamHvSnapshotCreator.exe                             12.3.0.310                                         
VeeamLogShipper.exe                                    12.3.2.4165                                        
VeeamLogShipper.exe                                    12.3.2.4165                                        
VeeamNetworkRedirector.exe                             12.3.0.310                                         
VeeamNetworkRedirector.exe                             12.3.2.3617                                        
VeeamNetworkRedirector.exe                             12.3.2.3617                                        
VeeamToolsSvc.exe                                      12.3.0.310                                         
VeeamVixProxy.exe                                      12.3.2.3617                          


waqasali
Forum|alt.badge.img+4
  • Influencer
  • 399 comments
  • October 22, 2025

Hi ​@Iams3le I got the clearance. Should I perform the upgrade? Is it stable? 


Chris.Childerhose
Forum|alt.badge.img+21
  • Veeam Legend, Veeam Vanguard
  • 9569 comments
  • October 22, 2025

Hi ​@Iams3le I got the clearance. Should I perform the upgrade? Is it stable? 

The upgrade is stable as we have been rolling it out this week other than the cosmetic version number differences nothing to be worried about.


waqasali
Forum|alt.badge.img+4
  • Influencer
  • 399 comments
  • October 22, 2025

Hi ​@Iams3le I got the clearance. Should I perform the upgrade? Is it stable? 

The upgrade is stable as we have been rolling it out this week other than the cosmetic version number differences nothing to be worried about.

 

 

thank you ​@Chris.Childerhose 


waqasali
Forum|alt.badge.img+4
  • Influencer
  • 399 comments
  • October 23, 2025

Hi,

 

I have patched the application successfully and working as expected. Thank you guys for sharing the information.


Chris.Childerhose
Forum|alt.badge.img+21
  • Veeam Legend, Veeam Vanguard
  • 9569 comments
  • October 23, 2025

Great to hear the patch is good 👍


  • New Here
  • 2 comments
  • November 6, 2025

When I go to KB4696: Release Information for Veeam Backup & Replication 12.3 there is no purple EXE or ISO link for me to use to initiate the download of the patch.  

I am logged in.

I have suspicion that it is because my account on Veeam does not have the licenses for the product.  We rent it from another vendor.  I am contacting them now.


Iams3le
Forum|alt.badge.img+11
  • Author
  • Veeam Legend
  • 1545 comments
  • November 6, 2025

When I go to KB4696: Release Information for Veeam Backup & Replication 12.3 there is no purple EXE or ISO link for me to use to initiate the download of the patch.  

I am logged in.

I have suspicion that it is because my account on Veeam does not have the licenses for the product.  We rent it from another vendor.  I am contacting them now.

Did you give up scrolling on this page: https://www.veeam.com/kb4696


  • New Here
  • 2 comments
  • November 6, 2025

When I go to KB4696: Release Information for Veeam Backup & Replication 12.3 there is no purple EXE or ISO link for me to use to initiate the download of the patch.  

I am logged in.

I have suspicion that it is because my account on Veeam does not have the licenses for the product.  We rent it from another vendor.  I am contacting them now.

Did you give up scrolling on this page: https://www.veeam.com/kb4696

Hello,

It was confirmed by my vendor support that the links only show up when a licensed user is logged in.  I am waiting for the service provider to send me the patch ISO since they have the license.

Appreciate your response.