UniconOS <2607.2/2603 LTSR CU2: Persistent Cmd Exec
CVE-2026-53563 Published on October 13, 2026
Persistent Command Execution
Vulnerability in Citrix UniconOS leading to Persistent Command Execution
This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
Vulnerability Analysis
CVE-2026-53563 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-53563 has been classified to as a Shell injection vulnerability or weakness.
Affected Versions
Citrix UniconOS:- Before 2607.2 CR is affected.
- Before 2603 LTSR CU2 is affected.