Question 1

What is the EOL Risk Score for Erlang 20?

Accepted Answer

Erlang 20 has an EOL Risk Score™ of 50 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (40/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Erlang 20 still supported?

Accepted Answer

Erlang 20 is no longer supported — it has passed its end of life date (June 21, 2020). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Erlang 20 reach end of life?

Accepted Answer

Erlang 20 reached (or will reach) end of life on June 21, 2020. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Erlang 20 after end of life?

Accepted Answer

After end of life, Erlang 20 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.