CVE-2019-9548 - Citrix Application Delivery Management (ADM) Agent Security Update

Description of Problem A vulnerability has been identified in Citrix Application Delivery Management Agent that could allow an unauthenticated attacker with network access to the management agent interface to obtain sensitive information. Disclosed information could be used for privilege escalati...

Crash Reporter Utility for Citrix Virtual Apps and Desktops

About This Release This is an early technical preview release v1.0.0.2 of the Crash Reporter utility. This release has not been tested extensively and is not supported. Please send any feedback using the link in Contact Information section. Where to download ? Certain legacy Citrix tools are now...

App Layering - PVS Blue Screen SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (CVhdMp.sys)

The BSOD SYSTEMTHREADEXCEPTIONNOTHANDLED CVhdMp.sys is seen when booting up a VM in PVS using an App Layering image. It is also possible to just simply get a BSOD with a Stop Code of 0x0000007B. However, this is fairly generic. If you see this stop code and "ERROR: BNIStack failed, network stack...

Debugging Layer Integrity Problems in Citrix App Layering

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Recommended Hotfixes for Citrix Hypervisor 8.2 Cumulative Update 1

This article contains the minimum set of hotfixes to install to get your Citrix Hypervisor 8.2 Cumulative Update 1 installation up to date. If you use theAutomated Updatesfeature of XenCenter, this is the set of hotfixes that are installed. Note : Citrix Hypervisor 8.2 Cumulative Update 1 reaches...

[NetScaler-Responder] Responder policy lead to Client "ERR_TOO_MANY_REDIRECTS"

You may want to redirect clients to a backend server's error page if a specific condition is met. The error page is hosted by the same vServer's backend service. You may configure the responder policy like below: add responder action RespErrorPageAct redirect ""/path/to/errorpage.html""...

Unable to upload the master image on MCS machine catalog in GCP

Error when updating the catalog Action Name: MCUpdateMachineCatalog Exception: StudioErrorId : ProvisioningTaskError ErrorCategory : NotSpecified TaskState : UnknownError TaskStateInformation : Terminated ErrorId : ManagedMachineGeneralException Operation : PreparingMasterImage ErrorMessage : Err...

Upcoming changes for Citrix DaaS to remote hypervisor communication

Citrix DaaS service is migrating the communication channel used to access some Hypervisors. This migration will result in a more stable and higher performing connection. This transition will be performed on a rolling basis starting in Q1 2025...

Citrix Director - Troubleshoot Monitor data source errors

Director reports Monitor data source errors...

Error: "HVM is Required for this Operation" when Trying to Start the VM in XenServer

Example 1 When trying to start the virtual machine VMthe following error is returned: “ There were no servers available to start VM ” The reason is displayed as “ HVM Hardware Virtual Machine is required for this operation ” Example 2 When trying to migrate a Windows VM from one host to another...

How to Configure XenServer to Send System Alerts through Authenticated SMTP Servers

This article describes how to configure XenServer to send system alerts through SMTP servers that require authentication. Requirements Administrative access to a XenServer host console either directly, through SSH, or by using theConsoletab in XenCenter. Background Customers can configure XenServ...

Unable to reconnect to disconnected session.

Attempts to reconnect to a session might fail and the session might disappear from Citrix Director. A new session is launched instead of reconnecting to the existing session. To enable the fix, set the following registry key: Session Manager terminates session launches when the Group Policy...

Warning:Table chb_State.Workers object definition does not match the expected reference schema

The Site test Report shows a warning "Table chbState.Workers object definition does not match the expected reference schema" CDF traces captured from the DDC while running the Ste test show the below messages:...

How to remove Secure Hub from an Android device enrolled using Legacy DA mode

How to remove Secure Hub from an Android device enrolled using Legacy Device Administrator DA mode...

Cannot join Server Group - Error occurred running the command: Start-DSClusterJoinService

When trying to add Storefront server to existing group, getting error: When checking event viewer logs on Storefront server, we see: An error occurred running the command: 'Start-DSClusterJoinService' Exception of type...

How to Check Citrix Maintenance Program Expiration Dates

This article provides instructions on how to check the current expiration date of Subscription Advantage, Customer Success Services CSS, Appliance Maintenance, and Hardware Warranty memberships on Citrix product by using the My Account web portal. Background Customers can locate a list of license...

​StoreFront Shows Blank Icons for Published Applications

StoreFront shows blank icons for the published applications. This issue occurs after introducing a new secondary store in the environment. If we clear out the icon cache and reset IIS storeWeb\AppData\CtxsWebProxyIconCache, the issue gets fixed temporarily...

CVE-2013-4786 for LOM vulnerability

Mitigation recommendations for vulnerability CVE-2013-4786: 1. Setup SSL on the LOM port to encrypt credentials during login. 2. Follow the Secure Deployment Guide for Citrix ADC to isolate all management ports including the BMC management port on a management VLAN as is industry best practice...

WEM agent is not able to connect/synchronize with the WEM Broker Server

ISSUE: WEM Agent is not able to connect and synchronize with the WEM Broker servers ERRORS PRESENT: The WEM Agent session & Debug logs show the following error: Exception - AgentLocalCacheSync. : The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicati...

Error: "Profile Installation Failed A Network Error Has Occurred" during XenMobile iOS Enrollment

XenMobile iOS enrollment getting error "Profile Installation Failed A network error has occurred" iOS console logs show: Xens-iPhone profiled148 : Error MC: URL request to https://mdmxms.domain.net:8443/zdm/scep/sp-078435ec-0aed-4ba0-bb3d-be665934be12?operation=GetCACert&message=APPLEPROFILE...

Citrix Virtual Apps and Desktops - Citrix.Monitor.exe memory leak

Citrix.Monitor.exe is gradually taking up ram memory on the Delivery Controller. Number of threads increases every day 200+. Memory usage is very high 1GB+. Process memory dump shows a lot of threads with ‘SendMessagesToPendo’ on the call stack...

CVAD - Published app in windowed mode disappears offscreen when minimized

After launching non-seamless app, if the app gets minimized, the user unable to restore it back. The non-seamless app minimizes and disappears and cannot be retrieved unless the user invokes the task switcher with hotkey combinations. The issue also occurs when using RDP initial app testing...

LogonUI.exe process hanging after logoff from multi-session VDA

When utilizing multi-session VDA with the Duo Security agent installed, users may close out the applications in an attempt to log off of the VDA but the LogonUI.exe process will hang. This will result in multiple Terminal Services sessions showing active with the same session number, but no user...

Citrix WEM User Logon Service is causing logon delay

End Users are reporting high logon times After the Logon breakup from Citrix Monitor page, most of the time is being taken during the Interactive Session Phase When looked at the Logon process from the Desktop side, delay is observed at "Please wait for the Citrix WEM User Logon Service" stage...

uberAgent - CVAD Site not visible in Splunk

Splunk dashboard CVAD/DaaS Applications & Desktops does not display CVAD Site on the list. There is no issue with data upload from agent to Splunk as other DDC metrics are available. uberAgent.log file located in C:\Windows\Temp on the Delivery Controller shows the error if you search for:...

Hotfix XS82ECU1083 - For Citrix Hypervisor 8.2 Cumulative Update 1

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2 Cumulative Update 1 and is only available to customers on theCustomer Success Servicesprogram. Note: Citrix Hypervisor 8.2 Cumulative Update 1 reaches end of life on Jun 25, 2025. Upgrade toXenServer...

Citrix VDA - How to stop VDACEIP collection

How to stop VDACEIP collection on the VDA. VDA: any version...

Citrix Endpoint Management (aka XenMobile Server) 10.16.0 Rolling Patch 4

Package name: xms10.16.0.10427.bin For: XenMobile Server 10.16.0 Deployment type: On-premises only Replaces: xms10.16.0.10318.bin, xms10.16.0.10205.bin, xms10.16.0.10108.bin Date: December 2024 Languages supported: English US Important notes about this update As a best practice, Citrix recommends...

XenMobile server fix for CVE-2023-48795,CVE-2023-51384, and CVE-2023-51385

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How to Use Multiple Activation Key (MAK) Activation with Automatic Updates

This article describes how to use Multiple Activation Key MAK Windows OS Activation with Automatic Updates. Note: For Provisioning Server 6.x and 7.x environments, using vDisk versioning is the preferred method to update MAK-enabled image. MAK activation for Microsoft Office products isNOT...

How To: Check if HTTP/2 is being used in the NetScaler, and if so by which entities

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Citrix indirect display adapter is installed along with Workspace app in Win10

After installingCitrix Workspace 1809 or above version in Windows 10,Citrix indirect display adapter is installed automatically...

Citrix FAS: Your session 'AppName' did not launch successfully due to error code 3500

Session launch fails in the double hop scenario as explained below, First Hop: Successful desktop Launch Second Hop: Session fails to launch with the error code “Your session 'AppName' did not launch successfully due to error code 3500. Please contact your administrator for more information about...

How to configure Responder policy to redirect http request to https

This article provide a Responder policy sample to achieve of redirecting http traffic to https for Content Switching Virtual Server with Responder policy in NetScaler. Policy is both applicable for http/ssl type Load balance virtual server...

Unable to install Citrix FAS - Error ID: XDMI:EA63CDB6

Unable to install Citrix FAS 2209 on Microsoft server 2019 with error message : Error ID: XDMI:EA63CDB6 - Object reference not set to an instance of an object...

How to check write cache disk usage from XenServer Hypervisor

How to check Write Cache Disk usage from XenServer hypervisor...

How to disable "This Site is trying to open citrix workspace launcher" prompt when launch resource

"This Site is trying to open citrix workspace launcher" when launch resourcevia Edge or Google Chrome...

Failed to Publish FAS Certificate Template with "RPC server unavailable. 0x800706ba"

Failed to publishFAS certificate Template with"An error occurred: CCertAdmin::GetCAProperty:RPC server unavailable. 0x800706ba". On Domain Controller,there is an error message in Event Log "RPCCAUTHNLEVELPKTINTEGRITY"and EventID is 10036...

Understanding Write Cache in Provisioning Services Server

This article provides information about write cache usage in a Citrix Provisioning, formerly Provisioning Services PVS, Server. Write Cache in Provisioning Services Server In PVS, the term “write cache” is used to describe all the cache modes. The write cache includes data written by the target...

How to install to Citrix ADM a Server Certificate

Steps to install a Server Certificate on Citrix ADM...

PXEChecker for Citrix Provisioning Services

Description PXEChecker is tool designed to troubleshoot configuration and environment related issues during the PXE boot process in Citrix Provisioning Services PVS. PXEChecker has two different tests: 1. Legacy BIOS Test.- Simulates the PXE boot process and analyzes the DHCP options on the DHCP...

Citrix Studio/StoreFront consoles stuck on "Expanding"

Citrix Studio Console which is installed on Delivery Controller cannot be launched. It stuck on "Expand" window. If we launch MMC on the DDC and try to launch Studio it gets stuck at “Assessing databases”...

Error: "Backup Failure: Could not find required XVA" on NetScaler SDX

After upgrading NetScaler SDX and Netscaler VPX firmware to any newer version you will get daily notifications about backups failing: For Example the Log Message is as below: Local0.Error 10.xx.xx. svmevent: GMT : EVENT BACKUPFAILED : 127.0.0.1:BackupFailure: - Could not find required XVA for...

Windows 10 & 11 Compatibility with Citrix Virtual Desktops (XenDesktop)

With the release of the Windows 10 & 11 Operating Systems, Microsoft introduced a new way to build, deploy, and service Windows:Windows as a service. New features are packaged into Feature Updates. Bug fixes and security fixes are packaged into Quality/Feature Updates. These updates can be deploy...

StoreFront Site Connecting Through NetScaler Gateway Gets Stuck at "/cgi/setclient?wica" Page After Authentication

When accessing StoreFront site through NetScaler Gateway, StoreFront site gets stuck at "/cgi/setclient?wica" page after authentication...

Capturing a continuous network trace( tcpdump ) on XenServer without filling the dom0

In certain situation, we are not sure when will the issue be reproduced and need to keep the network capture running. If the capture is run directly, it may fill up the dom0 filesystem and can crash the XenServer Host...

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2025-6543

Severity - Critical Description of Problem A vulnerability has been discovered in NetScaler ADC formerly Citrix ADC and NetScaler Gateway formerly Citrix Gateway. Refer below for further details. Affected Versions The following supported versions of NetScaler ADC and NetScaler Gateway are affecte...

Citrix End User Experience Monitoring service fails to start on the VDA

Citrix End User Experience Monitoring service fails to start. When you try to start the service manually you get the error: service started and then stopped. CDF trace from the VDA shows the event: SemsController,NotMetricRelated Failed to start with exception: System.Security.SecurityException:...

VDA 2203 OS Windows 11 || Username password incorrect with domain passthrough and SSON not working

Username password incorrect with domain passthrough and SSON not working...

Citrix Workspace App for Windows restarts after .NET upgrade

Citrix Workspace App Restart Issue: Mitigating .NET Runtime Upgrade Impact If the user endpoint updates the .NET Desktop Runtime, any .NET Core-based app running at the time of the update might exhibit inconsistent behavior. To mitigate this issue, Citrix Workspace App restarts itself. Behavior o...