Question 1

What is the EOL Risk Score for Microsoft 365 Apps 1703?

Accepted Answer

Microsoft 365 Apps 1703 has an EOL Risk Score™ of 65 out of 100, placing it in the High risk band. The score is calculated from four factors: EOL Recency (35/40), Attack Surface (10/30), CISA KEV Exposure (20/20), and Extended Support Availability (0/10).

Question 2

Is Microsoft 365 Apps 1703 still supported?

Accepted Answer

Microsoft 365 Apps 1703 is no longer supported — it has passed its end of life date (unknown). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Microsoft 365 Apps 1703 reach end of life?

Accepted Answer

The end of life date for Microsoft 365 Apps 1703 is not yet scheduled. Check the full Microsoft 365 Apps version timeline at endoflife.ai/microsoft-365-apps.html for the latest information.

Question 4

What are the security risks of running Microsoft 365 Apps 1703 after end of life?

Accepted Answer

After end of life, Microsoft 365 Apps 1703 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.