Fortinet End of Life (EOL) Support & Guidance

End of Life (EOL) means that Fortinet has officially retired a product. At this point, the device will no longer receive firmware updates, security patches, or new features, leaving it increasingly vulnerable to modern threats.

EOL marks when Fortinet discontinues updates and development for a product. EOS goes a step further: it’s the date Fortinet ends all technical support, troubleshooting, and replacement services.

These terms are often used interchangeably. EOSL typically refers to the final point when Fortinet no longer provides any form of assistance or services for the product, making it critical to transition to newer hardware or supported solutions.

You can verify EOL status by reviewing Fortinet’s official product lifecycle page or working with a trusted partner like Aseva, who tracks these dates and helps clients plan ahead.

The EOL date is when the product stops receiving updates, while the EOS date is when Fortinet discontinues support. These dates vary by model, so it’s essential to check the lifecycle list for your device.

An end-of-life vulnerability is a security gap that arises when an outdated device no longer receives patches. Cybercriminals often target EOL products because their weaknesses are widely known but unaddressed by the vendor.

Continuing to use an EOL product increases risk of cyberattacks, downtime, and compliance violations. You may also lose access to vendor support, making it harder to recover from failures or outages.

https://endoflife.date/fortios

Fortinet offers the following major lifecycle milestones:

End of Order (EOO): is last date on which a product may be ordered.
Last Service Extension Date (LSED): The last date at which a service extension is accepted for an existing contract, for a hardware or software product. This is 12 months before the EOS date for most products, and 90 days after the End-of-life notification for stand-alone services.
End of Engineering Support for Software (EOES): The date beyond which Fortinet no longer commits to provide engineering support for software. After this date the software enters a must-fix support phase, during which maintenance builds will only be produced for industry-wide critical issues and PSIRT vulnerabilities. The EOES date is generally 36 months after the GA date.
End of Support Date (EOS): Fortinet will not sell, manufacture or improve the product after this date and is under no obligation to provide support services. In general the EOS takes place as follows:
Hardware – 60 months after the EOO Date