NetScaler ADC 12.1 · Version Status
NetScaler ADC 12.1 End of Life Date
NetScaler ADC 12.1 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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NetScaler ADC 12.1 is past end of life. This version no longer receives security patches. 1190 days past EOL — migrate to a supported version immediately.
EOL Date
May 30, 2023
1190 days past EOL
Latest Release
12.1
Standard release
Release Date
May 25, 2018
NetScaler ADC 12.1 series
Lifecycle detail
NetScaler ADC 12.1 was released on May 25, 2018 and support ended on May 30, 2023 — a supported lifespan of 5 years, shorter than the 6 years median for NetScaler ADC releases. It has been without security patches for 3 years and 3 months. 1 newer NetScaler ADC release has shipped since.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
20/20 Named in CISA 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 NetScaler ADC 12.1 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →
All NetScaler ADC Versions
| Version | Latest | EOL Date | Status |
|---|
| → 12.1 |
12.1 |
May 30, 2023 |
EOL |
| 13.0 |
13.0 |
Jul 15, 2024 |
EOL |
| 13.1 |
13.1 |
Sep 15, 2027 |
Active |
| 14.1 |
14.1 |
Aug 8, 2030 |
Active |
What does NetScaler ADC 12.1 end of life mean?
When NetScaler ADC 12.1 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 NetScaler ADC 12.1 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to NetScaler ADC 14.1 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does NetScaler ADC 12.1 reach end of life?
NetScaler ADC 12.1 reached end of life on May 30, 2023. This version is no longer receiving security patches.
Is NetScaler ADC 12.1 still supported?
No. NetScaler ADC 12.1 reached end of life on May 30, 2023 and is no longer receiving security patches.
What should I upgrade to from NetScaler ADC 12.1?
The recommended upgrade from NetScaler ADC 12.1 is
NetScaler ADC 14.1 — the latest actively supported version. Check the
NetScaler ADC full timeline for all supported versions.
What are the security risks of running NetScaler ADC 12.1 past EOL?
When NetScaler ADC 12.1 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 NetScaler ADC should migrate immediately or implement compensating controls.