Question 1

What is the EOL Risk Score for Umbraco 18?

Accepted Answer

Umbraco 18 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 Umbraco 18 still supported?

Accepted Answer

Umbraco 18 is currently supported. End of life is scheduled for June 25, 2027. Plan your migration before that date to avoid security risk.

Question 3

When does Umbraco 18 reach end of life?

Accepted Answer

Umbraco 18 reached (or will reach) end of life on June 25, 2027. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Umbraco 18 after end of life?

Accepted Answer

After end of life, Umbraco 18 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.