WatchGuard Firebox M500 end-of-life and support dates

Lifecycle timeline

• 2020-04-01 — End of active support · End of maintenance
• 2023-06-30 — End of support · End of standard support

Why this status?

“End of active support” (end-of-maintenance, 2020-04-01, confirmed) has passed and no later support phase is published.

Other Firebox / Fireware models still inside the support window

• Firebox T15 — support ends 2027-03-01
• Firebox T15-W — support ends 2027-03-01
• Firebox T20 — support ends 2028-07-01
• Firebox T20-W — support ends 2028-07-01

The cited source lists these as still supported. They are not a replacement recommendation; check WatchGuard's guidance for your deployment before planning change work.

Evidence

• WatchGuard End-of-Life Policy Official · checked 2026-07-15

Related

• All WatchGuard Firebox / Fireware lifecycle dates· 60 tracked models
• WatchGuard Firebox / Fireware security advisories· 87 tracked
  • CVE-2026-98432: WatchGuard Linux Kernel IPv4 Use-After-Free Vulnerability (CVE-2026-98432)
  • CVE-2026-112709: WatchGuard Fireware OS Heap Buffer Overflow in AD Authentication Service Allows Pre-Authentication Remote Code Execution
  • CVE-2026-103593: WatchGuard Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution
  • CVE-2026-112710: WatchGuard Fireware OS Heap Buffer Overflow in AD Authentication Service Allows Pre-Authentication Remote Code Execution
  • CVE-2026-93857: WatchGuard Fireware OS Pre-Authentication Stack Buffer Overflow in SIP Proxy Allows Remote Code Execution
• CVE email alerts for WatchGuard