CVE-2020-8283
A permanent, source-backed tracker page. Values are shown only when returned; explicit gaps and read failures remain different states.
What it is
ReportedAn 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. Source description excerpt; complete tracked detail loads below.
NVD published: Dec 15, 2020 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
What is affected
ReportedCitrix — virtual_apps_and_desktops. Product-level identification only; no affected-version conclusion is available from this field.
NVD published: Dec 15, 2020 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Urgency and basis
ReportedAct now · 557.1
Tracker decision tier from the evidence detailed below · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Exploitation evidence
Reportedkev-listed · VulnCheck KEV
VulnCheck KEV added: Jan 26, 2021 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
What to do
ReportedApply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Source remediation ↗Tracked source remediation field · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Evidence detail
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