Citrix XenServer Multiple Security Updates

Description of Problem Two issues have been identified within Citrix XenServer, which could, if exploited, allow unprivileged code in a PV guest VM to cause the host to crash or become unresponsive. These vulnerabilities affect all currently supported versions of Citrix XenServer up to and...

Critical Error: "An error occurred communicating with the Server" when adding a server to a store

When adding a server to a store in PVS console, the console hangs, then after a few seconds the message Critical Error: "An error occurred communicating with the Server" is seen, and the soap service crashes. A soap service crash dump may show an exception due to the stack overflow, where it has...

How to enable Teams Optimization with Microsoft's new VDI Optimization engine - SlimCore

Microsoft has released a new VDI solution for Teams. This is a how-to guide detailing the steps necessary to enable the SlimCore Optimization for Teams. We hope this guide will ease your effort to enable the new solution in your environment. If you have further feedback that you want to share wit...

Netscaler CVE & Security Guide

Introduction Begin with an introduction to the main issue topic, explaining its significance and how the hub article serves as a central resource for related information. Overview of the Issue Provide a brief yet comprehensive overview of the issue, outlining the common challenges and key points...

WEM - Exception: Failed to determine site for agent machine

WEM Agent does not get registered. Agent log 4:41:56 PM Exception - VuemAgentServiceConfigurationHelper.UpdateConfigurationSet : Failed to determine site for agent machine. 4:41:56 PM Exception - VuemAgentServiceConfigurationHelper.ReadRepositorySettings : Error happened while getting global...

PVS Login error: Error "the domain\user does not have access to the farm" or "The specified AuthGroup does not exist" when Trying to Connect to PVS Farm

When trying to connect to a PVS Farm through the PVS Console, the following error is displayed and you cannot connect to the Farm. Error : "the domain\user does not have access to the farm" Error : "The specified AuthGroup does not exist"...

Security Advisory for Citrix Hypervisor

Several security issues have been identified that affect Citrix Hypervisor: An issue has been identified that may allow privileged code in a PV guest VM to cause the host to crash. This issue has the following identifier: CVE-2022-23034 Note that PV guests are supported in Citrix XenServer 7.1 LT...

Errors logging off the endpoints while having active published apps - “CGPPowerNotifWndCls: wfica23.exe – Application error”

Users are reporting an error when logging off from their workstations while havingactive published app sessions The users are not closing the published app before logging off the Worksstation. Users utilize Windows 10 machines with Imprivata to badge-in/badge-out Agent 6.3. When they badge in,...

Citrix Hypervisor Security Update

Description of Problem Two issues have been identified in Citrix Hypervisor that may, if exploited, allow privileged code in an HVM guest VM to compromise or crash the host. These issues only apply in specific configurations; furthermore, Citrix believes that there would be significant difficulty...

CVE-2017-5571 - Open Redirect Vulnerability in Citrix License Server for Windows and Citrix License Server VPX

Description of Problem An open redirect vulnerability has been identified in the Citrix License Server for Windows and the Citrix License Server VPX. This vulnerability could potentially be used to facilitate a phishing or social engineering attack. This vulnerability has been assigned the...

Authentication Bypass Vulnerability in the Management Interface of Citrix Application Delivery Controller and Citrix Gateway

Description of Problem A vulnerability has been identified in the management interface of Citrix Application Delivery Controller ADC formerly known as NetScaler ADC, and Citrix Gateway, formerly known as NetScaler Gateway, that, if exploited, could allow an attacker with access to the management...

CVE-2018-18883 - Citrix XenServer Security Update

Description of Problem A security issue has been identified in Citrix XenServer that may allow a malicious administrator of an HVM guest VM to crash the host. This issue affects the following versions of Citrix XenServer: Citrix XenServer 7.6 Citrix XenServer 7.5 Citrix XenServer 7.1 LTSR CU1 The...

CVE-2016-6273 - Denial of Service Vulnerability in Citrix License Server

Description of Problem A vulnerability has been identified in the Citrix License Server for Windows and Citrix License Server VPX that could allow a remote, unauthenticated attacker to crash the License Server. This vulnerability affects all versions of Citrix License Server for Windows and Citri...

Citrix Hypervisor Security Update

Description of Problem A number of vulnerabilities have been found in Citrix Hypervisor formerly Citrix XenServer that may: i. Allow the host to be compromised by privileged code in a PV guest VM, ii. allow unprivileged code in a HVM guest VM to cause that guest to crash and iii. under certain...

CVE-2019-6485 - TLS Padding Oracle Vulnerability in Citrix Application Delivery Controller (ADC) and NetScaler Gateway

Description of Problem A vulnerability has been identified in the Citrix Application Delivery Controller ADC formally known as NetScaler ADC and NetScaler Gateway platforms using hardware acceleration that could allow an attacker to exploit the appliance to decrypt TLS traffic. This vulnerability...

Citrix NetScaler Application Delivery Controller and NetScaler Gateway Multiple Security Updates

Description of Problem A number of vulnerabilities have been identified in supported versions of Citrix NetScaler Application Delivery Controller ADC and NetScaler Gateway. The following vulnerabilities have been addressed: CVE-2018-6810: Citrix NetScaler Application Delivery Controller ADC and...

NetScaler Agent 13.1/14.1: How to Change the nsroot Password for NetScaler Agent via CLI

Requirement to change nsroot password for NetScaler Agent...

Sessions not logging out after enabling Shellbridge

Seamless sessions might not log off gracefully and leave sessions to be active in Citrix Studio or Citrix Director when using Citrix Virtual Apps and Desktops 2212 or later including Citrix Apps and Desktops 2402 LTSR. Starting with Citrix Virtual Apps and Desktops 2212 the Windows startup...

The operation is blocked. Session Recording Administrator logging failed

The operation is blocked. Session Recording Administrator logging failed ,when change session recording policies and session recording properties Deselect all the require SSL for application pool of session recording website in iis, issue remains Set...

Citrix SD-WAN Center Security Updates

Description of Problem A command injection vulnerability has been identified in the management console of Citrix SD-WAN Center and NetScaler SD-WAN Center. This vulnerability could allow an unauthenticated attacker with access to the management console to compromise the host. A low severity...

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 PV guest VM to compromise the host. The issues have the identifiers: CVE-2017-8903 High: x86: 64bit PV guest breakout via pagetab...

CVE-2016-6493 - Memory Permission Weakness in Citrix XenApp and XenDesktop

Description of Problem A weakness has been identified in Citrix XenApp and XenDesktop. While this issue is not directly exploitable, it could potentially weaken an existing security mitigation, resulting in a loss of defence in depth. This weakness affects the following Citrix products: Citrix...

CVE-2016-4810 - Vulnerability in Citrix Studio Could Result in Insecure Access Policy Configuration

Description of Problem A vulnerability has been identified in Citrix Studio that could allow Access Policy rules to be set insecurely on the Citrix XenDesktop Delivery Controller. This vulnerability affects the following product versions: Citrix XenDesktop 7.x between versions 7.0 and 7.6...

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"...

The digital signature on wfica32.exe is invalid (error: 1116)

Post upgrading the Citrix Workspace App to 2302 the applications are not launching. Error message while we launch the application. "The digital signature on wfica32.exe is invalid error: 1116"...

CVE-2018-7218 - Vulnerability in Citrix NetScaler Application Delivery Controller and NetScaler Gateway leading to arbitrary code execution and host compromise

Description of Problem A flaw has been identified in the AppFirewall feature of Citrix NetScaler Application Delivery Controller ADC and Citrix NetScaler Gateway that could result in arbitrary code execution and host compromise. The following vulnerability has been addressed: CVE-2018-7218...

Event ID: 0 & Event ID:1 - Citrix Store cannot be created or added

Unable to create or add a store. Event ID: 0 & Event ID:1 Checking the event viewer on the Storefront server gives the following events- Also, unable to browse an existing store. "The webpage cannot be found."...

Error: "Power State Unknown" "CDS_EVENT_HOSTING_FAILED_POWER_ACTION" in XenDesktop

Machines in Desktop Studio or Desktop Director display a Power State of Unknown. CDSEVENTHOSTINGFAILEDPOWERACTION The Citrix Broker Service detected that power action '%1' on virtual machine '%2' failed. This problem is most likely due to a host issue. Check that the configuration of the virtual...

Hotfix XS82ECU1072 - 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. Note: This hotfix is available only to customers on theCustomer Success Servicesprogram. Information About this Hotfix Prerequisite| None ---|--- Post-update tasks| None Content live...

Session Sharing Explained with Troubleshooting Steps

This article explains session sharing and discusses some common scenarios. Session sharing is the ability of a seamless published application to be executed over the same connection as other seamless applications that are already running on the same server, under an existing Session ID of a user...

Citrix Provisioning Security Bulletin CVE-2024-6150

Description of Problem A vulnerability has been discovered that impacts Citrix Provisioning. Refer to below for further details: Affected Versions The vulnerability affects the following supported versions of Citrix Provisioning Current Release CR Citrix Provisioning versions before 2402 Long Ter...

"Connection timeout" error when launching Desktop sessions

Users are unable to connect to Desktop Sessions. All connections fail with status "Connection Timeout"...

Windows published desktop Signing out immediately after Logging on.

To reproduce error: 1. login to Store Front, and launch Desktop 2. New application window opens shows "Notice - Proprietary System" screen. Click OK. 3. Desktop launch begins: Starts to spin and login the user, "Please wait for Citrix Profile Management" 4. "Preparing Windows" and then goes to a...

Citrix Secure Access client for Ubuntu Security Bulletin for CVE-2023-24492

Vulnerabilities have been discovered in Citrix Secure Access client for Ubuntu previously Citrix Gateway VPN client for Ubuntu. The following supported versions are affected by the vulnerability: Versions before 23.5.2 The issue has the following identifier: CVE ID| Affected Products| Description...

CVE-2016-6276 - Vulnerability in Citrix Linux VDA (formerly known as Linux Virtual Desktop) Could Result in Privilege Escalation

Description of Problem A vulnerability has been identified in the Linux Virtual Delivery Agent VDA component of Citrix XenDesktop that could allow a local user to execute commands as root on the Linux VDA. The vulnerability affects all versions of the Citrix Linux VDA earlier than version 1.4.0...

CVE-2014-8580 - Authentication Flaw in Citrix NetScaler Application Delivery Controller and NetScaler Gateway Could Result in Unauthorised Access to Network Resources

Description of Problem An authentication flaw has been identified in certain configurations of Citrix NetScaler ADC and NetScaler Gateway that could allow an authenticated user to obtain unauthorised access to network resources for another authenticated user. This flaw affects the following...

Error 2320 - Cannot start apps. Please run Reset Citrix Workspace to resolve a lockdown conflict for LegacyLocalUserNameAndPassword

When trying to launch the applications through the Native Workspace App you get an error stating 'Cannot start apps. Please run Reset Citrix Workspace to resolve a lockdown conflict for LegacyLocalUserNameAndPassword'. Resetting Workspace App does not resolve the issue...

CVE-2017-14602 - Authentication Bypass Vulnerability in the Management Interface of Citrix NetScaler SD-WAN/CloudBridge 4000, 4100, 5000 and 5100 WAN Optimization Edition Appliances

Description of Problem A vulnerability has been identified in the management interface of the Citrix NetScaler SD-WAN/CloudBridge 4000, 4100, 5000 and 5100 WAN Optimization Edition appliances. This vulnerability, if exploited, could allow an attacker with access to the management interface of the...

How to troubleshoot PVS TD bootup error 'BNIStack failed,network stack could not be initialized'

In PVS environment, a very common error is the 'BNIStack failed' loop restart error During target device boot up, a 'BNIStack failed,network stack could not be initialized' occur, then target device had to reboot again, and the next new bootup encounter same error and reboot again and again. This...

Getting "Request not supported" while launching a published Desktop with FAS enabled

Launching of a published desktop fails when StoreFront server is configured to use FAS. You will get an error "Request Not Supported ". The below error may be seen in Kerberos event logs on the VDA when attempting to launch. 0x10 - KDCERRPADATATYPENOSUPP: KDC has no support for padata type Kerber...

XenServer and Citrix Hypervisor Security Update for CVE-2025-27462, CVE-2025-27463, CVE-2025-27464

Description of Problem Issues have been identified in the XenServer VM Tools for Windows that allow an attacker who has the ability to execute arbitrary unprivileged code within a guest Windows VM to compromise that same VM. This issue affects Windows VMs running on either XenServer 8.4 and Citri...

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...

CVE-2019-13609 - CRLF Vulnerability in Citrix License Server for Windows and VPX

Description of Problem A Carriage Return Line Feed CRLF injection vulnerability has been identified in Citrix License Server for Windows and VPX that could allow an unauthenticated attacker to bypass authentication and allow a malicious website to read or modify license server data of an existing...

CVE-2016-5433 - TLS Certificate Validation Vulnerability in Citrix iOS Receiver

Description of Problem A vulnerability has been identified in Citrix iOS Receiver that could result in TLS certificates being incorrectly validated. This vulnerability has been assigned the following CVE number: CVE-2016-5433: TLS Certificate Validation Vulnerability in Citrix iOS Receiver. This...

Citrix SDWAN Center Security Update

Description of Problem Multiple vulnerabilities have been discovered in Citrix SD-WAN Center that, if exploited, could allow an unauthenticated attacker with network access to SD-WAN Center to perform arbitrary code execution as root. These vulnerabilities have the following identifiers: CVE|...

Citrix Policy Reporter - RSOP CtxCseUtil Tool

CtxCseUtil.exe Created Date: October 24th, 2012 Version: 1.0 Description CtxCseUtil is a tool that can generate resultant set of policy RSOP report per computer, per user or both for Citrix policies on a device that has the Group Policy Management Console installed. Please note: You can download...

CVE-2019-17366 - Citrix Application Delivery Management (ADM) Console Security Update

Description of Problem An authorisation bypass vulnerability was discovered in the Citrix Application Delivery Management ADM server. The vulnerability allows a Citrix ADM user with read-only privilege to access a managed instances with admin level permissions. The following deployment scenarios...

CVE-2017-14602 - Authentication Bypass Vulnerability in Citrix NetScaler ADC and NetScaler Gateway Management Interface

Description of Problem A vulnerability has been identified in the management interface of Citrix NetScaler Application Delivery Controller ADC and NetScaler Gateway that, if exploited, could allow an attacker with access to the NetScaler management interface to gain administrative access to the...

CVE-2017-9231 - XML External Entity (XXE) Processing Vulnerability in Citrix XenMobile Server 10.x and 9.x

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

CVE-2016-5302 - Citrix XenServer Security Update

Description of Problem A security vulnerability has been identified in XenServer 7.0 that may allow an attacker on the management network who is in possession of Active Directory credentials for an AD account that is not authorised to manage a XenServer host to compromise that host. The following...