29 December 2025

Security Alert: Immediate WatchGuard Firebox Firmware Update Required

faille wg

As the year comes to a close, it’s important to remember that cybersecurity never takes a holiday. WatchGuard has just released a new Firebox firmware to address a critical vulnerability affecting all Firebox models and versions.

⚠️ What is this about?

A critical vulnerability has been identified in Fireware OS, specifically in the IKEv2 VPN service. This vulnerability, referenced as CVE-2025-14773, is actively being exploited by attackers targeting exposed network devices.

If your device is not updated, your network and data could be at risk.

Available Corrective Versions

Since December 18, 2025, the following firmware versions are available to address this vulnerability:

  • Fireware 2025.1.4 or later

  • Fireware v12.11.6 or later

  • Fireware v12.5.15 or later

  • Fireware v12.3.1 Update 4 or later

It is strongly recommended to update all your Firebox devices immediately.

Recommended Actions

  1. Check your Firebox version to ensure it is secure.

  2. Apply the official update available from the WatchGuard software download center.

  3. Contact your IT provider or partner to plan the updates if needed.

Why Act Quickly?

  • The vulnerability is actively exploited, meaning real attacks have already been observed.

  • Unpatched devices are highly vulnerable.

  • Proactive communication with clients or IT teams is essential to reduce risks.

 

 

Even during the year-end period, cybersecurity remains a top priority. Applying the WatchGuard Firebox updates protects your data and network and ensures you start 2026 safely and securely.

Our team is available to verify your devices and help plan the necessary updates.

Share this article :
Facebook
Twitter
LinkedIn
WhatsApp

Discover other articles