Question 1

What is the EOL Risk Score for Apache Solr 3?

Accepted Answer

Apache Solr 3 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 Apache Solr 3 still supported?

Accepted Answer

Apache Solr 3 is currently supported. End of life is scheduled for a future date. Plan your migration before that date to avoid security risk.

Question 3

When does Apache Solr 3 reach end of life?

Accepted Answer

The end of life date for Apache Solr 3 is not yet scheduled. Check the full Apache Solr version timeline at endoflife.ai/solr.html for the latest information.

Question 4

What are the security risks of running Apache Solr 3 after end of life?

Accepted Answer

After end of life, Apache Solr 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.