CVE-2021-22928

Name: CVE-2021-22928
Creator: NVD / NIST
Published: 2021-08-05T21:15:11.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2021-22928 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.25%

16.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Citrix	Virtual Apps And Desktops	>= 2006, <= 2106
Citrix	Virtual Apps And Desktops	1912
Citrix	Xenapp	7.15
Citrix	Xendesktop	7.15

References

https://support.citrix.com/article/CTX319750Patch, Vendor Advisory
https://support.citrix.com/article/CTX319750Patch, Vendor Advisory

Timeline

Published: Aug 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22928?

How severe is CVE-2021-22928?

CVE-2021-22928 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22928?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22928?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST