Question 1

What is the EOL Risk Score for Cisco Identity Services Engine 2.4?

Accepted Answer

Cisco Identity Services Engine 2.4 has an EOL Risk Score™ of 70 out of 100, placing it in the High risk band. The score is calculated from four factors: EOL Recency (40/40), Attack Surface (10/30), CISA KEV Exposure (20/20), and Extended Support Availability (0/10).

Question 2

Is Cisco Identity Services Engine 2.4 still supported?

Accepted Answer

Cisco Identity Services Engine 2.4 is no longer supported — it has passed its end of life date (December 26, 2021). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Cisco Identity Services Engine 2.4 reach end of life?

Accepted Answer

Cisco Identity Services Engine 2.4 reached (or will reach) end of life on December 26, 2021. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Cisco Identity Services Engine 2.4 after end of life?

Accepted Answer

After end of life, Cisco Identity Services Engine 2.4 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.