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Vulnerability record · CVE-2021-22928 · published 5 August 2021

CVE-2021-22928: Citrix virtual apps and desktops vulnerability

Citrix · Virtual Apps And Desktops

A vulnerability has been identified in Citrix Virtual Apps and Desktops that could, if exploited, allow a user of a Windows VDA that has either Citrix Profile Management or Citrix Profile Management WMI Plugin installed to escalate their privilege level on that Windows VDA to SYSTEM.

7.8 CVSS 3.1 High EPSS 0.25% · top 85.5%
7.8CVSS 3.1 base score, v2 7.2
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in Citrix Virtual Apps and Desktops that could, if exploited, allow a user of a Windows VDA that has either Citrix Profile Management or Citrix Profile Management WMI Plugin installed to escalate their privilege level on that Windows VDA to SYSTEM.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.citrix.com/article/CTX319750 PatchVendor Advisory
https://support.citrix.com/article/CTX319750 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2016-6493Citrix xenapp vulnerabilityCitrix XenApp 6.x before 6.5 HRP07 and 7.x before 7.9 and Citrix XenDesktop before 7.9 might allow attackers to weaken an unspecified security mitiga…EPSS 2.2%9.3CVE-2012-5161Citrix xenapp vulnerabilityThe XML Service interface in Citrix XenApp 6.5 and 6.5 Feature Pack 1 allows remote attackers to execute arbitrary code via unspecified vectors.EPSS 5.7%8.8CVE-2020-8283Citrix virtual apps and desktops improper privilege management vulnerabilityAn authorised user on a Windows host running Citrix Universal Print Server can perform arbitrary command execution as SYSTEM in CVAD versions before …EPSS 2.7%8.8CVE-2020-8269Citrix virtual apps and desktops improper privilege management vulnerabilityAn unprivileged Windows user on the VDA can perform arbitrary command execution as SYSTEM in CVAD versions before 2009, 1912 LTSR CU1 hotfixes CTX285…EPSS 2.7%8.8CVE-2020-8270Citrix virtual apps and desktops os command injection vulnerabilityAn unprivileged Windows user on the VDA or an SMB user can perform arbitrary command execution as SYSTEM in CVAD versions before 2009, 1912 LTSR CU1 …EPSS 3.5%8.5CVE-2024-6151Citrix virtual apps and desktops improper privilege management vulnerabilityLocal Privilege escalation allows a low-privileged user to gain SYSTEM privileges in Virtual Delivery Agent for Windows used by Citrix Virtual Apps a…EPSS 0.21%7.8CVE-2023-24483Citrix virtual apps and desktops improper privilege management vulnerabilityA vulnerability has been identified that, if exploited, could result in a local user elevating their privilege level to NT AUTHORITY\SYSTEM on a Citr…EPSS 0.27%7.5CVE-2016-4810Citrix xenapp improper access control vulnerabilityCitrix Studio before 7.6.1000, Citrix XenDesktop 7.x before 7.6 LTSR Cumulative Update 1 (CU1), and Citrix XenApp 7.5 and 7.6 allow attackers to set …EPSS 0.86%

Source: NIST National Vulnerability Database (record CVE-2021-22928), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.