PVS 1912CU5 on Windows 2012 R2 with KB501874: The specified AuthGroup does not exist

PVS console fails to login with error: "The specified AuthGroup does not exist"...

PVS boot fails for Server 2025 based PVS vdisks running on Azure and Hyperv after windows update

When applying windows updates to a PVS vdisk with Server 2025 which is running on Azure or Hyper-V, after rebooting to finish installing windows updates, PVS boot fails. Issue when applying windows updates to a PVS Streamed server 2025 vdisk: 1. The vdisk is booted in read/write mode 2. Windows...

Reporting: "Error retrieving data source. Return code=257. Error message=Operation not permitted."

The message "Error retrieving data source. Return code = 257. Error message = Operation not permitted" is displayed when clicking Reporting on NetScaler:...

CVE-2019-13608 - XML External Entity (XXE) Processing Vulnerability in Citrix StoreFront Server

Description of Problem An XML External Entity XXE processing vulnerability has been identified in Citrix StoreFront Server that could allow an unauthenticated attacker to retrieve potentially sensitive information from the server. This vulnerability has been assigned the following CVE number: •...

Service 'Citrix Workspace Updater Service' (CWAUpdaterService) Failed to Start When Installing CWA

Failed to install CWA. Error message shows:Service 'Citrix Workspace Updater Service' CWAUpdaterService failed to start, Verify that you have sufficient privileges to start system services...

Citrix ADC and Citrix Gateway Security Update (CVE-2019-0140)

Description of Problem A vulnerability has been identified affecting Citrix Application Delivery Controller ADC formerly known as NetScaler ADC, and Citrix Gateway, formerly known as NetScaler Gateway, platforms which could result in privilege escalation via layer 2 network access on all network...

Citrix Hypervisor Security Update

Description of Problem A number of security issues have been identified in certain CPU hardware that may allow unprivileged code running on a CPU core to infer the value of memory data belonging to other processes, virtual machines or the hypervisor that are, or have recently been, running on the...

PVS - Imaging Wizard fails when creating Vdisk. Error after restart 'Imaging wizard did not restart'

When attempting to create a vDisk, the Imaging Wizard gets as far as requiring a reboot, but after the restart returns the error 'Imaging wizard did not restart'...

Vulnerabilities in Citrix Workspace app and Receiver for Windows

Description of Problem Vulnerabilities have been identified in Citrix Workspace app and Citrix Receiver for Windows that could result in a local user escalating their privilege level to administrator during the uninstallation process. The issues have the following identifiers: CVE-2020-13884...

Citrix Hypervisor Security Update for CVE-2024-31497

Description of Problem Versions of XenCenter for Citrix Hypervisor 8.2 CU1 LTSR included a 3rd-party component, PuTTY, that is used to enable SSH connections from XenCenter to guest VMs when the “Open SSH Console” button is selected. The inclusion of PuTTY with XenCenter for Citrix Hypervisor 8.2...

CVE-2015-0235 - Citrix Security Advisory for glibc GHOST Vulnerability

Overview A vulnerability has been recently disclosed in the glibc gethostbyname function. This issue could potentially allow an attacker to inject code into a process that calls the vulnerable function. The issue is known as the GHOST vulnerability and has been assigned the following CVE...

Cloud Software Group Security Advisory for CVE-2024-3661

Cloud Software Group has evaluated the impact of vulnerability CVE-2024-3661 on our products. This vulnerability may allow an attacker on the same local network as the victim to read, disrupt, or modify network traffic expected to be protected by the VPN. Please find below the impact status: 1...

Mastering Historical Throughput/Bandwidth data Using NetScaler Reporting feature

This article aims to provide a comprehensive guide on utilizing the reporting feature to effectively capture historical throughput data in NetScaler...

Citrix StoreFront Security Bulletin for CVE-2022-27503

A reflected cross-site scripting XSS issue has been discovered in Citrix StoreFront when it is configured to use SAML authentication. If exploited, this issue would allow an attacker to execute client-side JavaScript in the same context as a legitimate user. This issue has the following identifie...

Citrix Hypervisor Security Update

Description of Problem A security issue has been identified in Citrix Hypervisor that may allow privileged code running in a guest VM to infer details of some computations occurring in other VMs on the host. This may, for example, be used to infer a secret encryption key used by a web server in a...

Citrix XenServer Multiple Security Updates

Description of Problem A number of security issues have been identified within Citrix XenServer. These issues could, if exploited, allow a malicious administrator of a guest VM to compromise the host. The issues have the identifiers: CVE-2017-10920, CVE-2017-10921 and CVE-2017-10922 High: Grant...

Enabling WPF Rendering for Citrix HDX on Multi-Session VDAs

Overview Windows Presentation Foundation WPF applications can leverage GPU acceleration in Citrix Virtual Apps and Desktops CVAD environments running Windows Multi-session OS. By enabling WPF rendering on the server’s GPU, this reduces CPU load and improves graphics performance for WPF...

Does CWAL support http store

This article is intended for Citrix administrators and technical teams only.Non-admin users must contact their company’s Help Desk/IT support team and can refer toCTX297149for more information Does CWAL supports http store in Native receiver or Storebrowse?...

Citrix Workspace app for Windows Security Update

Description of Problem A vulnerability has been identified in the automatic update service of Citrix Workspace app for Windows that could result in: A local user escalating their privilege level to that of an administrator on the computer running Citrix Workspace app for Windows. A remote...

CVE-2016-7777 - Citrix XenServer Security Update

Description of Problem A security vulnerability has been identified in Citrix XenServer that may allow malicious user code within an HVM guest VM to read or modify the contents of certain registers belonging to other tasks within that same guest VM. This vulnerability affects all currently...

Fail to launch session with Event ID6 error after changing display setting.

Launch session takes 67 seconds and then fails. Check the Event Log, there are several Event ID 6 Errors recorded. Error Message: Citrix ICA could not configure Thinwire and switch to the remote ICA display. Rebooting the workstation or logging in to the console will fix this...

Citrix DaaS - Unable to reconnect to a disconnected session

Users attempting to reconnect to their previously disconnected ICA sessions while accessing Citrix Virtual Apps and Desktops CVAD via Citrix Workspace App CWA are unable to do so. The reconnection process fails, potentially leaving users with a frozen or unresponsive application or desktop sessio...

VDA Installer Only Displays Splash Screen then Closes

When installing the workstation VDA, the Installer Splash Screen appears for a second then disappears. Nothing is logged in the installer logs There are no crashes reported in the eventlogs DebugView shows the installer exits with status Code: 1 Using the Citrix VDA Cleanup Utility Tool does not...

Citrix SDWAN Security Bulletin for CVE-2024-2049

A vulnerability has been identified that impacts Citrix SD-WAN Affected Versions: The vulnerability affects the following supported versions of Citrix SD-WAN SD-WAN Standard/Premium Editions on or after 11.4.0 and before 11.4.4.46 Summary: SDWAN contains the vulnerability mentioned below...

Citrix Workspace App for Linux Security Update

A vulnerability has been identified in Citrix Workspace app for Linux that could result in a local user elevating their privilege level to root on the computer running Citrix Workspace app for Linux. The vulnerability has the following identifier: CVE ID| Description| Vulnerability Type|...

Citrix XenServer Multiple Security Updates

Description of Problem A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host. These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServe...

BSOD with Error: "STOP 0x0000007E and CVhdMp.sys Error: BNIStack failed, network stack could not be initialized"

When attempting to boot Vdisks from Target device a BSOD occurs with the following message: STOP" 0x0000007E and CVhdMp.sys Error: BNIStack failed, network stack could not be initialized...

Citrix Hypervisor Multiple Security Updates

Description of Problem Several issues have been discovered that affect Citrix Hypervisor 8.2 CU1 LTSR and may allow malicious privileged code in a guest VM to: i Compromise an AMD-based host via a passed through PCI device: CVE-2023-34326 ii Compromise the host when a specific administrative acti...

Target device boot failure "EFI system partition (ESP) error: Unsupported, Streaming aborted"

This PC has UEFI instead of BIOS, by leveraging Booting from the NIC using DHCP. PVSNBPX65.EFI is already downloaded. Now the error is:" Boot from local disk. "EFI system partition ESP error: Unsupported, Streaming aborted" The error disappears if PC inserts a local hard drive...

Troubleshooting thin provisioning for shared block storage on XenServer

XenServer and Citrix Hypervisor use GFS2 to provide the ability to set up thin provisioning with a shared block storage device. Pools that use GFS2 to thin provision their shared block storage are clustered and behave differently to pools that use shared file-based storage or LVM with shared bloc...

Citrix Session Printers are not mapped after logon

Unable to connect the printer from user end. Session printers are not mapped with following event in the Application event log: Event id: 1105 Cloud not add printer connection to printer \\, for the user username. Error condition is: The Printer name is invalid...

Unable to Launch Applications After VDA Upgrade to 1912 CU9 Due to Missing Working Directory

Please note: You can download the required file from the Citrix downloads website by visiting the following link:https://www.citrix.com/downloads/citrix-tools To apply the updated DLL with the tested code changes, please replace the files in the specified locations on the Multi-Session VDA as...

Citrix Gateway Plug-in for Windows Security Bulletin for CVE-2022-21827

A vulnerability has been discovered in Citrix Gateway Plug-in for Windows Citrix Secure Access for Windows. If exploited, this issue would allow an adversary, who has gained local access to a computer with Citrix Gateway Plug-in installed, to corrupt or delete files as SYSTEM. This issue has the...

Citrix XenMobile 10.x Multiple Security Updates

Description of Problem A number of security vulnerabilities have been identified in Citrix XenMobile Server. The vulnerabilities have been assigned the following CVE numbers. Affecting XenMobile Server 10.7 and 10.8: CVE-2018-10653 High: XML External Entity XXE Processing Vulnerability in Citrix...

How to Change Management IP and Default Gateway Using NetScaler CLI

This article describes how to change management IP address and add new default gateway address using NetScaler CLI. Changing the Default Gateway of the NetScaler appliance can only be done via the CLI. The NetScaler appliance can only have 1 Default Gateway defined at a time...

Citrix Workspace App for Windows crash due to .NET 9.0.5

If you have any Current Release of Citrix Workspace App 2409.10 or higher, or LTSR version 2402 CU3 or higher and .NET Desktop Runtime 9.0.5 installed, receiver.exe could crash post session launch. Post crash, the systray icon would show up only two options - Open and Exit...

XenServer and Citrix Hypervisor Security Update for CVE-2024-5661

An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which mayallow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive. This issue has the following identifier: CVE-2024-5661 CVE-2024-5661 affects all deployments. Summary CV...

Citrix Hypervisor Multiple Security Updates

Description of Problem Several issues have been identified within Citrix Hypervisor, which could, if exploited, allow: privileged code in a PV guest VM to read a single uninitialized 4kB page of memory that may contain data left by a previous VM privileged code in a guest VM to cause the host to...

Netscaler High Availability issues

Introduction This article provides a list of Knowledge Base resources on how to investigate, troubleshoot, and prevent the most common issues with Netscaler High Availability HA. Overview of the Issue NetScaler High Availability HA offers seamless failover capabilities to maintain uninterrupted...

Mac Workspace error "This store doesn't exist. Please retry or contact support"

After plugging-in Gateway URL on Mac Workspace and entering credentials, Workspace prompt error "This store doesn't exist. Please retry or contact support"...

Debugging Layer Integrity Problems in Citrix App Layering

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Citrix XenServer Multiple Security Updates

Description of Problem A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host. These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServe...

Citrix Audio Diagnostic Tool

Citrix Audio Diagnostics tool 1.0.3 What’s new for this release? Support new policy Loss Tolerant Mode for Audio. Optimize the display of network metrics for high round-trip times ICA RTT. Support command-line mode and a runtime option in seconds, allowing the tool to operate in the background fo...

VDA machines stuck at Initializing for Hybrid Azure AD join

For Citrix MCS provisioned Hybrid Azure AD joined machine catalogs, the VDA machines might be stuck at “Initializing” status after startup. And when you login to the VDA machines and execute the “dsregcmd /status /debug” command, you will find below error message under “Diagnostic Data” “Server...

Citrix Hypervisor Security Bulletin for CVE-2022-33745

A security issue has been identified in Citrix Hypervisor 7.1 LTSR CU2 that may allow privileged code in a PV guest VM to fail to perform management operations. The issue has the following CVE identifier: CVE-2022-33745...

What is the Default Password for App Layering?

Question: What is the default root password for the Citrix Enterprise Layer Manager ELM via console for App Layering Unidesk? Answer: The default username and password sets for App Layering Unidesk are as follows: rootvia the ELM virtual appliance console - two possible defaults: v9Yx6uj OR...

How to reboot or shutdown NetScaler MAS using CLI

Citrix ADM, formerly NetScaler MAS There is an option on MAS GUI to reboot it but what is the equivalent CLI command for it. Do not use the REBOOT command as it is not a clean reboot and will need a Database recovery...

Profile Management Configuration Checking Tool - UPMConfigCheck

Please note: You can download the required file from the Citrix downloads website by visiting the following link: https://www.citrix.com/downloads/citrix-tools Profile Management Configuration Check Tool UPMConfigCheck Created Date: February 27, 2012 Updated Date: August 23, 2023 Description...

Citrix Hypervisor Security Update

Description of Problem A number of vulnerabilities have been found in Citrix Hypervisor formerly Citrix XenServer that allow the host to be compromised by: i. Privileged code in a guest VM that has been assigned a PCI passthrough device ii. Privileged code in a PV guest VM iii. Unprivileged code ...

Citrix SD-WAN Security Update

Description of Problem Multiple denial of service vulnerabilities have been identified in the Citrix SD-WAN Appliance and Citrix SD-WAN Center Management Console. These vulnerabilities could permit a remote attacker to cause a denial of service by causing a host crash or by causing reduced servic...