CVE-2026-53563
Persistent Command Execution
CVE-2026-53563 is a medium vulnerability (CVSS 6.9) in Citrix Uniconos, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.
Vulnerability in Citrix UniconOS leading to Persistent Command Execution
This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-53563- CVSS 4.0
- 6.9 Medium
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 - Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2026-100753
Vulnerability in Citrix UniconOS leading to Persistent Command Execution
This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
- Record
EUVD-2026-100753- CVSS 4.0
- 6.9 Medium
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jq59-m47r-c584
Vulnerability in Citrix UniconOS leading to Persistent Command Execution This issue affects...
Vulnerability in Citrix UniconOS leading to Persistent Command Execution
This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
- Record
GHSA-jq59-m47r-c584- CVSS 4.0
- 6.9 Medium
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-78
- Updated
- 2026-11-02
NVD
Vulnerability in Citrix UniconOS leading to Persistent Command Execution
This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
- Record
CVE-2026-53563- CVSS 4.0
- 6.9 Medium
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-78
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, GitHub Advisories, NVD |