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CVE-2026-53563— Persistent Command Execution

Quick assessment

Affected
Citrix UniconOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Citrix UniconOS 中存在可导致持久化命令执行的漏洞 该漏洞影响 UniconOS：低于 2607.2 CR 版本以及低于 2603 LTSR CU2 版本。

CVSS 6.9 · Medium
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I. Basic Information for CVE-2026-53563

Vulnerability Information
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Vulnerability Title
Persistent Command Execution
Source: CVE Program / CVE List V5
Vulnerability Description
Vulnerability in Citrix UniconOS leading to Persistent Command Execution This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Citrix UniconOS 0 ~ 2607.2 CR -

II. Public POCs for CVE-2026-53563

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III. Intelligence Information for CVE-2026-53563

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Other References for CVE-2026-53563 (1)

Same Patch Batch · Citrix · 2026-10-13 · 4 CVEs total

CVE-2026-53562 8.5 HIGH Local Privilege Escalation
CVE-2026-84419 6.8 MEDIUM Out-of-Bounds Write
CVE-2026-53564 5.1 MEDIUM Arbitrary file read and write

IV. Related Vulnerabilities

Same product: UniconOS
Same vendor: Citrix

V. Comments for CVE-2026-53563

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