Question 1

What is the EOL Risk Score for XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8)?

Accepted Answer

XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) has an EOL Risk Score™ of 10 out of 100, placing it in the Low risk band. The score is calculated from four factors: EOL Recency (0/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) still supported?

Accepted Answer

XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) is currently supported. End of life is scheduled for November 30, 2028. Plan your migration before that date to avoid security risk.

Question 3

When does XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) reach end of life?

Accepted Answer

XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) reached (or will reach) end of life on November 30, 2028. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) after end of life?

Accepted Answer

After end of life, XenServer (Citrix Hypervisor) XenServer 8.4 (formerly XenServer 8) no longer receives security patches. Any newly discovered CVEs remain unpatched indefinitely. Organizations running EOL software also face compliance violations under SOC 2, PCI DSS, HIPAA, and ISO 27001, which require use of supported software versions.