Question 1

What is the EOL Risk Score for QNAP NAS ES1686dc?

Accepted Answer

QNAP NAS ES1686dc has an EOL Risk Score™ of 38 out of 100, placing it in the Medium risk band. The score is calculated from four factors: EOL Recency (8/40), Attack Surface (10/30), CISA KEV Exposure (20/20), and Extended Support Availability (0/10).

Question 2

Is QNAP NAS ES1686dc still supported?

Accepted Answer

QNAP NAS ES1686dc 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 QNAP NAS ES1686dc reach end of life?

Accepted Answer

QNAP NAS ES1686dc 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 QNAP NAS ES1686dc after end of life?

Accepted Answer

After end of life, QNAP NAS ES1686dc 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.