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 affected by the vulnerabilities:
NetScaler ADC and NetScaler Gateway 14.1 BEFORE 14.1-43.56
NetScaler ADC and NetScaler Gateway 13.1 BEFORE 13.1-58.32
NetScaler ADC 13.1-FIPS and NDcPP BEFORE 13.1-37.235-FIPS and NDcPP
NetScaler ADC 12.1-FIPS BEFORE 12.1-55.328-FIPS
Note: NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now End Of Life (EOL) and are vulnerable. Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities.
Additional Note: Secure Private Access on-prem or Secure Private Access Hybrid deployments using NetScaler instances are also affected by the vulnerabilities. Customers need to upgrade these NetScaler instances to the recommended NetScaler builds to address the vulnerabilities.
This bulletin only applies to customer-managed NetScaler ADC and NetScaler Gateway. Cloud Software Group upgrades the Citrix-managed cloud services and Citrix-managed Adaptive Authentication with the necessary software updates.
Disclaimer
The information on this page is being provided to you on an «AS IS» and «AS-AVAILABLE» basis. The issues described on this page may or may not impact your system(s). Cloud Software Group, Inc. and its subsidiaries (collectively, «Cloud SG») make no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. BY ACCESSING THIS PAGE, YOU ACKNOWLEDGE THAT CLOUD SG SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. Cloud SG reserves the right to change or update the information on this page at any time. We accordingly recommend that you always view the latest version of this page. The information contained herein is being provided to you under the terms of your applicable customer agreement with Cloud SG, and may be used only for the purposes contemplated by such agreement. If you do not have such an agreement with Cloud SG, this information is provided under the cloud.com Terms of Use, and may be used only for the purposes contemplated by such Terms of Use.
Details
NetScaler ADC and NetScaler Gateway contain the vulnerabilities mentioned below:
CVE ID
Description
Pre-conditions
CWE
CVSSv4
CVE-2025-5349
Improper access control on the NetScaler Management Interface
Access to NSIP, Cluster Management IP or local GSLB Site IP
CWE-284: Improper Access Control
CVSS v4.0 Base Score: 8.7(CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L)
CVE-2025-5777
Insufficient input validation leading to memory overread
NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
CWE-125: Out-of-bounds Read
CVSS v4.0 Base Score: 9.3(CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L)
What Customers Should Do
Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the relevant updated versions as soon as possible.
NetScaler ADC and NetScaler Gateway 14.1-43.56 and later releases
NetScaler ADC and NetScaler Gateway 13.1-58.32 and later releases of 13.1
NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1-37.235 and later releases of 13.1-FIPS and 13.1-NDcPP
NetScaler ADC 12.1-FIPS 12.1-55.328 and later releases of 12.1-FIPS
Additionally, we recommend running the following commands to terminate all active ICA and PCoIP sessions after all NetScaler appliances in the HA pair or cluster have been upgraded to the fixed builds.:
kill icaconnection -all
kill pcoipConnection -all
Please ensure that the formatting remains intact as you copy and paste these commands.
Note: NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now End Of Life (EOL) and no longer supported. Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities.
A vulnerability has been discovered in Citrix Workspace app for Mac, which, if exploited, may result in a session hijack of a user who is authenticated on cloud stores.
Affected Versions:
The following supported versions of Citrix Workspace app for Mac are affected by the vulnerability: Citrix Workspace app for Mac before 2409
Summary:
CVE ID
Description
Pre-requisites
CWE
CVSS
CVE-2024-7549
Possible session hijack of a user who is authenticated on cloud store
Citrix Workspace app authenticated user using cloud store may be impacted when:Accessing SaaS/Web appOR Accessing CVAD apps or desktops using Custom Workspace URL
CWE-287: Improper Authentication
CVSS v4.0 Base Score: 6.9(CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
What Customers Should Do
Cloud Software Group strongly urges affected customers of Citrix Workspace app for Mac to install the relevant updated versions of Citrix Workspace app for Mac as soon as possible:
Windows Virtual Delivery Agent for CVAD and Citrix DaaS Security Bulletin CVE-2024-6151
Security Bulletin | Severity: High | Created: 09 Jul 2024 | Modified: 09 Jul 2024 | Status: Final
Applicable Products
Citrix Virtual Apps and Desktops
Description of Problem
A vulnerability has been identified that impacts Virtual Delivery Agent for Windows used by Citrix Virtual Apps and Desktops and Citrix DaaS. Refer to below for further details:
Affected Versions
The vulnerability affects the following supported versions of Windows Virtual Delivery Agent:
Current Release (CR)
Citrix Virtual Apps and Desktops versions before 2402
Long Term Service Release (LTSR)
Citrix Virtual Apps and Desktops 1912 LTSR before CU9
Citrix Virtual Apps and Desktops 2203 LTSR before CU5
Summary
Windows Virtual Delivery Agent contains the vulnerability mentioned below
CVE ID
Description
Pre-requisites
CWE
CVSS
CVE-2024-6151
Local Privilege escalation allows a low-privileged user to gain SYSTEM privileges
Local access to the target system
CWE-269: Improper Privilege Management
CVSS v4.0 Base Score: 8.5(CVS:4.0/AV:L/AV:L/AT:N/PR:L/UI:N/VCH/VI:H/VA:H/SC:N/S:N/S:N)
What Customers Should Do
Citrix strongly recommends that customers upgrade their Windows Virtual Delivery Agent to versions that contain the fixes as soon as possible.
Windows Virtual Delivery Agent versions that contain the fixes are:
Current Release (CR)
Citrix Virtual Apps and Desktops 2402 and later versions
Long Term Service Release (LTSR)
Citrix Virtual Apps and Desktops 1912 LTSR CU9 and later cumulative updates
Citrix Virtual Apps and Desktops 2203 LTSR CU5 and later cumulative updates
XenServer and Citrix Hypervisor Security Update for CVE-2024-5661
Security Bulletin | Severity: Medium | Created: 11 Jun 2024 | Modified: 11 Jun 2024 | Status: Final
Applicable Products
Citrix Hypervisor
Description of Problem
An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive. This issue has the following identifier:
For customers using XenServer 8, we have pushed an update to both the Early Access and Normal update channels. We recommend that customers update to the latest version from their chosen channel following the instructions at https://docs.xenserver.com/en-us/xenserver/8/update
For customers using Citrix Hypervisor 8.2 CU1 LTSR, we have released a hotfix to address this issue. We recommend that customers install this hotfix and follow the instructions in the linked article as their update schedule permits. The hotfix can be downloaded from the following location:
Citrix is notifying customers and channel partners about this potential security issue through the publication of this security bulletin on the Citrix Knowledge Center at https://support.citrix.com/securitybulletins.
Obtaining Support on This Issue
If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://www.citrix.com/support/open-a-support-case.
