Question 1

What is the EOL Risk Score for Cortex XDR 9.3?

Accepted Answer

Cortex XDR 9.3 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 Cortex XDR 9.3 still supported?

Accepted Answer

Cortex XDR 9.3 is currently supported. End of life is scheduled for May 16, 2027. Plan your migration before that date to avoid security risk.

Question 3

When does Cortex XDR 9.3 reach end of life?

Accepted Answer

Cortex XDR 9.3 reached (or will reach) end of life on May 16, 2027. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Cortex XDR 9.3 after end of life?

Accepted Answer

After end of life, Cortex XDR 9.3 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.