CVE-2026-53563
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
A vulnerability in Citrix UniconOS allows persistent command execution. This issue affects versions before 2607.2 CR and before 2603 LTSR CU2.
Risk Assessment
An attacker could gain persistent control over the system by executing arbitrary commands, potentially leading to full environment compromise.
Recommendation
Update Citrix UniconOS to version 2607.2 CR or 2603 LTSR CU2 or later to prevent exploitation.
Other vulnerabilities in Citrix UniconOS
See all- CVE-2026-53564Medium
A vulnerability in Citrix UniconOS allows arbitrary file read and write. This issue affects versions before 2607.2 CR and before 2603 LTSR CU2.
- CVE-2026-53562High
Citrix UniconOS contains an improper link resolution before file access ('link following') vulnerability. This issue affects versions before 2607 CR and before 2603 LTSR CU2.
Original NVD description (English source)
Vulnerability in Citrix UniconOS leading to Persistent Command Execution This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS