An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer. If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Watchguard Fireware Os | — | Upgrade WatchGuard Fireware OS to the latest version | Nov 13, 2025 | Sep 17, 2025 |
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