Citrix HDX Engine is not responding

Error "Citrix HDX engine is not Responding" when launching an application on windows embedded device with receiver 4.8/4.10...

Citrix Receiver gives error "HDX Engine Stopped Working"

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...

How to Customize NetScaler SD-WAN Virtual Path Traffic Classes

This article describes how to to modify the traffic classes that are part of NetScaler SD-WAN Virtual Path. Background Citrix SD-WAN Standard & Enterprise Editionsprovides 17 classes 0-16. Classes 0-3 are predefined for Citrix HDX QoS prioritization. To use this feature, enable the following...

Delay with touch screen swipe in HDX session from touch screen device when using Receiver for Windows

When using a touch screen device such as Microsoft surface pro which utilizes the full receiver for windows client users notice a delay when using the touch screen swipe feature in the session. This delay is most obvious when using the finger or a stylus pen to draw in an application such as MS...

HDX session stops responding when using two-finger scroll on a touchpad

Citrix HDX session may stop responding and hang when using the two-finger scroll on a touchpad. This was observed in certain machines running Windows 8 or 10 with Receiver 4.10 or higher...

HDX Media Engine Crashes when Disconnecting or Logging off From a Session

The HDX media engine crashes when disconnecting or logging off from a session. Here is how to reproduce the issue: 1. Start a published desktop from a ThinClient dual screen. 2. Within the published Desktop, launch another desktop. 3. Put this desktop on the second screen. 4. Logoff or disconnect...

CVE-2025-34093

creationtimestamp| type| source ---|---|--- 2018-05-29 15:50:33+00:00| seen| https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/misc/polycomhdxtracerouteexec.rb 2025-10-23 21:13:04+00:00| seen| MISP/a9d21043-f825-4bac-8d2b-56fb9e8343e7 2026-09-08 06:50:38+00:00| seen...

User Profile Management: Default Exclusion List not working. Error: "HDX policy DefaultSyncExclusionListDir disabled. Using an empty list"

If you enable "Enable Default Exclusion List - directories " policy from Citrix Studio, it might not work as expected. Following entry isrecorded in User Profile Management UPM logs: 2018-03-16;19:09:25.611;INFORMATION;;;;1756;ReadPolicy: HDX policy DefaultSyncExclusionListDir disabled. Using an...

Receiver for Windows 4.9LTSR/4.10 - Citrix HDX Engine Crash When Connecting to Linux VDA

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 to CTX297149 for more information. When connecting from a client machine that has Receiver 4.9 LTSR or Receiver 4.10 upgraded from...

HDX Insight Data Not Captured by NetScaler MAS

Citrix ADM, formerly NetScaler MAS HDX Insight data not captured by NetScaler MAS...

Cannot See HDX, TCP, Gateway, and Web Insight Data on NetScaler MAS

Cannot see HDX, TCP, Gateway, and Web Insight data on NetScaler MAS...

Enlightened Data Transport Not working with Double Hop DMZ scenario

EDT requires policy on the XenDesktop to be enabled and DTLS on the NetScaler to be ON. Also, StoreFront needs to be minimum Version 3.8 and Citrix Receiver at 14.7. So all the requirements are met. At theXenDesktop Policy for "HDX Adaptive Transport" is set to "preferred", still connections fail...

Polycom HDX Endpoint Remote Code Execution Vulnerability

Polycom HDX is a high definition series of network cameras. A remote code execution vulnerability exists in the Polycom HDX endpoint. An attacker can exploit the vulnerability to execute arbitrary code within the context of an application. A failed exploit attack could result in a denial of servi...

Polycom HDX Default Credentials (Telnet)

The Polycom device has default telnet credentials or passwordless login. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Polycom HDX Series RCE

When doing external assessments you spend a decent amount of time footprinting your target and finding possible avenues of attack. Given a large corporate, you are pretty likely to hit video conferencing end-points. This post details a vulnerability in one of these video conferencing systems, the...

Predefined Setting Values Configured on NetScaler MAS

This article list the predefined setting values configured on NetScaler MAS. NetScaler MAS Prune settings Number of days to keep data is default 15 Pruning happens everyday at 00:00 for Events, Audit Log, Task Log tables NetScaler MAS Backup Settings Every 12 hours NetScaler MAS will back up...

HDX applications fails to launch and errors out with an error message “Engine was not loaded, There is no Citrix SSL Server configured on the specified address. Error Number 183”.

HDX applications fail to launch and error out with an error message “Engine was not loaded, There is no Citrix SSL Server configured on the specified address. Error Number 183”. From the Client side trace we see that theclient is unable to make TCP connection with the Second AG Vserver on custom...

While Launching HDX Applications from Secure Hub WorkStore Getting an Error: "Unsupported file type......."

The hdx applications are enumerated in the secure hub store but while launching the application we get error : "Unsupported file type : the provided ica file is malformed or otherwise invalid. Please ensure that the product you are using for launching is correct. Contact you administrator for...

Unable to access HDX apps from XenApp. Error "HdxSdkErrorDomain_Session error 8."

Unable to access the XA application. Error on the device : iPhone: "HdxSdkErrorDomainSession error 8." iPad: "The session launch ended; either the session was not visible to the user, or the ICA engine did not load properly"...

Errors while launching HDX apps from Receiver/Secure Hub

When trying to launch any HDX applications from iOSor Android devices below error message is displayed. Error Message on iOS Devices:- Connection Error: Server Error; The Server disconnected the session. Error Message on Android devices: Cannot Connect : Error Connecting to the session reliabilit...