#VU124487 Resource management error in Citrix XenServer - CVE-2026-4397
Published: March 25, 2026
Vulnerability identifier: #VU124487
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-4397
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Citrix XenServer
Citrix XenServer
Software vendor:
Citrix
Citrix
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper management of internal resources on hosts with limited available memory. A local user can access data of a previously terminated VM when starting a new VM.
Remediation
Install updates from vendor's website.