CVE-2026-112710#
Fireware OS Heap Buffer Overflow in AD Authentication Service Allows Pre-Authentication Remote Code Execution
Summary #
A heap-based buffer overflow vulnerability exists in the Fireware OS authentication service allows an attacker who controls or intercepts traffic to the configured Active Directory server to create a denial of service condition and potentially execute arbitrary code by returning a specially crafted response.
Product status #
| Product | Affected | Not affected |
|---|---|---|
| Fireware OS | ||
| Default | >= 2025.1, < 2026.4, >= 12.0, < 12.12.4 | >= 2026.4, >= 12.12.4 |
| T15/T35 | >= 12.0, < 12.5.22 | >= 12.5.22 |
Required Configuration for Exposure #
This vulnerability affects Firebox deployments configured with an Active Directory authentication server.
Weakness Type and Impact #
Exploitation Status #
WatchGuard is not aware of any exploitation of this vulnerability in the wild.
Solution #
Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22
References #
Credits #
- WatchGuard AI Security Researchfinder