CVE-2026-53563mediumCWE-78

CVE-2026-53563: medium-severity vulnerability in Citrix UniconOS

Persistent Command Execution

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.3%
Vulnerability in Citrix UniconOS leading to Persistent Command Execution This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
Citrix · UniconOS
Related CVEs — Citrix UniconOS

In the same product, most dangerous first.

CVE-2026-53564MEDIUMArbitrary file read and writeEPSS 0.4%CVE-2026-53562HIGHLocal Privilege EscalationEPSS 0.2%