CVE-2020-8283: Citrix Virtual Apps And Desktops

High severity, CVSS 8.8. EPSS: 2.7% chance of exploitation in the next 30 days.

An authorised user on a Windows host running Citrix Universal Print Server can perform arbitrary command execution as SYSTEM in CVAD versions before 2009, 1912 LTSR CU1 hotfixes CTX285870 and CTX286120, 7.15 LTSR CU6 hotfix CTX285344 and 7.6 LTSR CU9.

Affected products

• Citrix Virtual Apps And Desktops: up to and including 2006; from 1903, up to and including 1912
• Citrix Xenapp: before 7.6 (fixed in 7.6); from 7.7, before 7.15 (fixed in 7.15); version 7.6 only; version 7.15 only
• Citrix Xendesktop: before 7.6 (fixed in 7.6); from 7.7, before 7.15 (fixed in 7.15); version 7.6 only; version 7.15 only

Published 2020-12-14. Last modified 2026-06-17.