Summary
WatchGuard patched a critical pre-authentication RCE vulnerability (CVE-2026-13368) in Firebox appliances. The vulnerability allows unauthenticated attackers to gain administrative control. Legacy T15 and T35 models currently do not have a patch.
Take Action:
If you use WatchGuard Firebox firewalls, read the advisory in detail. Plan a very quick update to Fireware OS 2026.2.1 or 12.12.1. If you run legacy T15/T35 models, disable external LDAP authentication for IKEv2 as a temporary fix, and if you're on version 11.x, migrate to supported hardware since no patch is coming.
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This article was originally published on BeyondMachines
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