Ref# ADV2026_209 | Date: Apr 3rd 2026

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Watch Guard published a security advisory highlighting vulnerabilities in the following products on April 1, 2026. It is recommended that you take the necessary precautions by ensuring your products are always updated.

• Fireware OS 2025-1 – versions 2025.1 to 2026.1.2
• Fireware OS 12.x – versions 12.6.1 to 12.11.8

For more information on these updates, you can follow these URLs:

• WatchGuard Firebox Arbitrary File Write via Path Traversal in Fireware Web UI
• WatchGuard Security Advisories

The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.

PDF Download: Watch Guard Security Advisory

References

• Watch Guard Security Advisory (n.d). Retrieved from Watch Guard. https://www.watchguard.com/wgrd-psirt/advisories
• Watch Guard Security Advisory. (April 2nd, 2026). Retrieved from Canadian Centre for Cyber Security. https://www.cyber.gc.ca/en/alerts-advisories/watchguard-security-advisory-av26-309