Question 1

What is the EOL Risk Score for Microsoft Host Integration Server 2013?

Accepted Answer

Microsoft Host Integration Server 2013 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 Microsoft Host Integration Server 2013 still supported?

Accepted Answer

Microsoft Host Integration Server 2013 is no longer supported — it has passed its end of life date (January 9, 2024). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Microsoft Host Integration Server 2013 reach end of life?

Accepted Answer

Microsoft Host Integration Server 2013 reached (or will reach) end of life on January 9, 2024. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Microsoft Host Integration Server 2013 after end of life?

Accepted Answer

After end of life, Microsoft Host Integration Server 2013 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.