Question 1

What is the EOL Risk Score for Microsoft Edge 151?

Accepted Answer

Microsoft Edge 151 has an EOL Risk Score™ of 35 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (25/40), Attack Surface (10/30), CISA KEV Exposure (0/20), and Extended Support Availability (0/10).

Question 2

Is Microsoft Edge 151 still supported?

Accepted Answer

Microsoft Edge 151 is no longer supported — it has passed its end of life date (August 27, 2026). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Microsoft Edge 151 reach end of life?

Accepted Answer

Microsoft Edge 151 reached (or will reach) end of life on August 27, 2026. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Microsoft Edge 151 after end of life?

Accepted Answer

After end of life, Microsoft Edge 151 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.