Question 1

What is the EOL Risk Score for Umbraco 10?

Accepted Answer

Umbraco 10 has an EOL Risk Score™ of 45 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (35/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Umbraco 10 still supported?

Accepted Answer

Umbraco 10 is no longer supported — it has passed its end of life date (June 16, 2025). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Umbraco 10 reach end of life?

Accepted Answer

Umbraco 10 reached (or will reach) end of life on June 16, 2025. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Umbraco 10 after end of life?

Accepted Answer

After end of life, Umbraco 10 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.