SNS Firmware 2 · Version Status
SNS Firmware 2 End of Life Date
SNS Firmware 2 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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SNS Firmware 2 is past end of life. This version no longer receives security patches. 1881 days past EOL — migrate to a supported version immediately.
EOL Date
Sep 13, 2021
1881 days past EOL
Latest Release
—
Standard release
Release Date
Mar 31, 2015
SNS Firmware 2 series
Where these dates come from
End of lifeSep 13, 2021endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees End of active supportSep 13, 2021endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees ReleaseMar 31, 2015endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
SNS Firmware 2 was released on March 31, 2015 and support ended on September 13, 2021 — a supported lifespan of 6 years and 6 months, longer than the 1 year and 6 months median for SNS Firmware releases. It was not an LTS release; SNS Firmware reserves longer patch windows for its LTS releases. It has been past its end-of-life date for 5 years and 2 months. 7 newer SNS Firmware releases have shipped since.
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 SNS Firmware 2 support options
Some vendors and third parties sell security patches beyond end of life; whether one covers this version varies. Compare your options.
Compare Options →
All SNS Firmware Versions
| Version | Latest | EOL Date | Status |
|---|
| 1 |
— |
Apr 24, 2015 |
EOL |
| → 2 |
— |
Sep 13, 2021 |
EOL |
| 3 |
— |
Sep 24, 2020 |
EOL |
| 3.7 LTS |
— |
Jun 30, 2024 |
EOL |
| 4.0 |
— |
Sep 24, 2020 |
EOL |
| 3.11 LTS |
— |
Jun 30, 2024 |
EOL |
| 4.1 |
— |
Apr 6, 2021 |
EOL |
| 4.2 |
— |
Jul 21, 2022 |
EOL |
What does SNS Firmware 2 end of life mean?
When SNS Firmware 2 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: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running SNS Firmware 2 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to SNS Firmware 5.0 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does SNS Firmware 2 reach end of life?
SNS Firmware 2 reached end of life on September 13, 2021. This version is no longer receiving security patches.
Is SNS Firmware 2 still supported?
No. SNS Firmware 2 reached end of life on September 13, 2021 and is no longer receiving security patches.
What should I upgrade to from SNS Firmware 2?
The recommended upgrade from SNS Firmware 2 is
SNS Firmware 5.0 — the latest actively supported version. Check the
SNS Firmware full timeline for all supported versions.
What are the security risks of running SNS Firmware 2 past EOL?
Since SNS Firmware 2 reached end of life, the maintainers no longer issue security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL SNS Firmware should migrate immediately or implement compensating controls.