September 2021 Security update

Security Sep 10, 2021

A security update is available for the only currently supported release of XCP-ng: 8.2 LTS.

To update, follow this guide. You can also join the discussion on our community forum. Hosts reboot necessary after this update.


Several vulnerabilities have been discovered and fixed in the Xen hypervisor.

To address this, we released updates to the Xen hypervisor packages for XCP-ng.‌


The vulnerabilities discovered in Xen may allow privileged code in a VM to compromise a host or cause a host to crash.

Details and CVE numbers are available in the advisories linked in the References section below.



Samuel Verschelde

XCP-ng release manager: pushes the big red "Release" button. Part developer, part packager, part QA, part manager. Open Source enthusiast since 2002.