Question 1

What is the EOL Risk Score for Veeam Backup for Microsoft 365 3?

Accepted Answer

Veeam Backup for Microsoft 365 3 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 Veeam Backup for Microsoft 365 3 still supported?

Accepted Answer

Veeam Backup for Microsoft 365 3 is no longer supported — it has passed its end of life date (April 2, 2022). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Veeam Backup for Microsoft 365 3 reach end of life?

Accepted Answer

Veeam Backup for Microsoft 365 3 reached (or will reach) end of life on April 2, 2022. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Veeam Backup for Microsoft 365 3 after end of life?

Accepted Answer

After end of life, Veeam Backup for Microsoft 365 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.