Fortinet FortiGate 40C end of life
FortiGate · also known as FortiGate-40C, FG-40C, FG40C
Status
Checked 1 Oct 2026FortiGate 40C no longer receives security fixes. If it's still running your office firewall, plan a replacement now.
- 1End of sale 14 Jan 2018 (9 years ago)
- 2Last date of support 14 Jan 2023 (4 years ago)
Key dates
Every date links to Fortinet's own page| Milestone | Date | Source |
|---|---|---|
| End of sale | 14 Jan 20189 years ago | Vendor bulletin ↗ |
| End of software maintenance | Not announced | – |
| End of vulnerability support | Not announced | – |
| Last date of support | 14 Jan 20234 years ago | Vendor bulletin ↗ |
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 14 Jan 2022.
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 40C still safe to use?
Not for a business network. Fortinet no longer issues security fixes for the FortiGate 40C, so new vulnerabilities will not be patched.
What replaced the FortiGate 40C?
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.