SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 · Version Status
SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 End of Life Date
SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 is past end of life. This version no longer receives security patches. 588 days past EOL — migrate to a supported version immediately.
EOL Date
Jan 23, 2025
588 days past EOL
Latest Release
TZ300
Standard release
Release Date
—
SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 series
Lifecycle detail
It has been without security patches for 1 year and 7 months.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →
All SonicWall Firewalls (TZ / NSa / NSsp hardware) Versions
| Version | Latest | EOL Date | Status |
|---|
| NSA 240 |
NSA 240 |
Apr 29, 2017 |
EOL |
| TZ210W |
TZ210W |
May 30, 2017 |
EOL |
| TZ210 |
TZ210 |
May 30, 2017 |
EOL |
| TZ100W |
TZ100W |
Nov 15, 2017 |
EOL |
| TZ100 |
TZ100 |
Nov 15, 2017 |
EOL |
| TZ200W |
TZ200W |
Jan 13, 2018 |
EOL |
| TZ200 |
TZ200 |
Jan 13, 2018 |
EOL |
| NSA 5000 |
NSA 5000 |
May 12, 2018 |
EOL |
What does SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 end of life mean?
When SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to SonicWall Firewalls (TZ / NSa / NSsp hardware) NSa 2700 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 reach end of life?
SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 reached end of life on January 23, 2025. This version is no longer receiving security patches.
Is SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 still supported?
No. SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 reached end of life on January 23, 2025 and is no longer receiving security patches.
What should I upgrade to from SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300?
What are the security risks of running SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 past EOL?
When SonicWall Firewalls (TZ / NSa / NSsp hardware) TZ300 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL SonicWall Firewalls (TZ / NSa / NSsp hardware) should migrate immediately or implement compensating controls.