Question 1

What is the EOL Risk Score for SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4?

Accepted Answer

SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 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 SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 still supported?

Accepted Answer

SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 is no longer supported — it has passed its end of life date (September 29, 2023). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 reach end of life?

Accepted Answer

SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 reached (or will reach) end of life on September 29, 2023. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 after end of life?

Accepted Answer

After end of life, SonicWall Network Security Manager (NSM) On-Prem 2.3.3-4 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.