networkeol.auFirewall end-of-life tracker

Fortinet FortiGate 300E end of life

FortiGate · also known as FortiGate-300E, FG-300E, FG300E

Status

Checked 1 Oct 2026
Unsupported

FortiGate 300E no longer receives security fixes. If it's still running your office firewall, plan a replacement now.

  1. 1End of sale 15 Jul 2021 (5 years ago)
  2. 2Last date of support 15 Jul 2026 (3 months ago)
Support ended 3 months ago 15 Jul 2026
Fortinet's named successor – Not named in the vendor bulletin

Key dates

Every date links to Fortinet's own page
MilestoneDateSourceChecked
End of sale 15 Jul 20215 years ago Vendor bulletin ↗ 1 Oct 2026
End of software maintenance Not announced – –
End of vulnerability support Not announced – –
Last date of support 15 Jul 20263 months ago Vendor bulletin ↗ 1 Oct 2026

Dates are from Fortinet's Product Life Cycle page in the FortiCloud support portal (free login required). End of Order is shown as end of sale and End of Support as last date of support. The last date to renew a service contract (Last Service Extension Date) is 15 Jul 2025. Last supported FortiOS version: 7.6. The 300E-LENC (30 May 2027) and 300E-USG (14 Jan 2028) variants are supported for longer.

What this means for your business

  • No new security patches: newly found vulnerabilities stay open on an internet-facing device.
  • Cyber insurance questionnaires increasingly ask whether any equipment is unsupported or past end of life.
  • No vendor support for faults, so a failure can mean days without a working firewall.
  • This is general information, not legal or insurance advice.

Replacement options

Vendor-neutral options to consider:

  • Palo Alto Networks PA-400 series
  • Ubiquiti UniFi Cloud Gateway
  • MikroTik RouterOS appliances

The right replacement depends on your sites, users and licensing, and is often cheaper than a like-for-like swap.

Keep or replace? Quick checklist

  • Is it your internet-facing firewall?
  • Do you have remote staff connecting through it?
  • Is your cyber insurance renewal in the next 6 months?
  • Do you store client or financial data behind it?
  • Is it running old firmware, or does it have no active vendor licence?

Two or more “yes” answers on an unsupported or soon-to-be-unsupported device is a good reason to get advice.

Frequently asked questions

Is the FortiGate 300E still safe to use?

Not for a business network. Fortinet no longer issues security fixes for the FortiGate 300E, so new vulnerabilities will not be patched.

What replaced the FortiGate 300E?

Fortinet's bulletin does not name a direct replacement that we've verified. The right choice depends on your sites, users and licensing.

Where do these dates come from?

From Fortinet's own lifecycle bulletins. Each date in the table links to its source, with the date we last checked it. Always confirm with Fortinet before making decisions.

Related models