Question 1

What is the EOL Risk Score for Office Online Server Office Online Server?

Accepted Answer

Office Online Server Office Online Server has an EOL Risk Score™ of 18 out of 100, placing it in the Low risk band. The score is calculated from four factors: EOL Recency (8/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Office Online Server Office Online Server still supported?

Accepted Answer

Office Online Server Office Online Server is currently supported. End of life is scheduled for December 31, 2026. Plan your migration before that date to avoid security risk.

Question 3

When does Office Online Server Office Online Server reach end of life?

Accepted Answer

Office Online Server Office Online Server reached (or will reach) end of life on December 31, 2026. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Office Online Server Office Online Server after end of life?

Accepted Answer

After end of life, Office Online Server Office Online Server 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.