CVE-2026-53564

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Arbitrary File Read and Write in Citrix UniconOS

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Citrix Systems, Inc.

Description

Vulnerability in Citrix UniconOS leading to Arbitrary file read and write This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-53564

EUVD

EUVD-2026-100754

Affected Vendors & Products

Vendor	Product	Version / Range
Citrix	UniconOS	0
Citrix	UniconOS	0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This vulnerability affects Citrix UniconOS versions before 2607.2 CR and before 2603 LTSR CU2. It allows arbitrary file read and write operations, meaning attackers could access or modify sensitive files on the system.

Impact Analysis

An attacker could exploit this to read sensitive data like configuration files or user credentials. They could also write malicious files to the system, potentially leading to further compromise or data corruption.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face compliance violations and penalties.

Mitigation Strategies

Update UniconOS to version 2607.2 CR or later, or 2603 LTSR CU2 or later to address the arbitrary file read and write vulnerability.

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