CVE-2026-53563NVD

Vulnerability Summary

Vulnerability in Citrix UniconOS leading to Persistent Command Execution

This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.

Severity Level

MEDIUM(6.9)

Published Date

Oct 13, 2026

Last Modified

Oct 14, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.20%Probability

Root Weakness (CWE)

N/A

CVSS v4.0 Base Metrics — Score 6.9 (MEDIUM)

Attack VectorLocal

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)Low

Availability (Vulnerable System)Low

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

Citrix UniconOS < 2607.2 CR
Citrix UniconOS < 2603 LTSR CU2

Patched Versions

Citrix UniconOS 2607.2 CR
Citrix UniconOS 2603 LTSR CU2

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