Question 1

What is the EOL Risk Score for Cisco NX-OS 10.3?

Accepted Answer

Cisco NX-OS 10.3 has an EOL Risk Score™ of 38 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (8/40), Attack Surface (10/30), CISA KEV Exposure (20/20), and Extended Support Availability (0/10).

Question 2

Is Cisco NX-OS 10.3 still supported?

Accepted Answer

Cisco NX-OS 10.3 is currently supported. End of life is scheduled for February 28, 2027. Plan your migration before that date to avoid security risk.

Question 3

When does Cisco NX-OS 10.3 reach end of life?

Accepted Answer

Cisco NX-OS 10.3 reached (or will reach) end of life on February 28, 2027. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Cisco NX-OS 10.3 after end of life?

Accepted Answer

After end of life, Cisco NX-OS 10.3 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.