CVE-2026-13368

WatchGuard Firebox Race Condition and Use-After-Free in Mobile VPN with IKEv2 LDAP Authentication

Critical 9.2 CVSS v4.0 › Published 2026-07-02Updated 2026-08-27

Summary #

WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code in the context of the iked process on Fireboxes that have a Mobile VPN with IKEv2 configured to use an external LDAP authentication server.

Product status #

ProductAffectedNot affected
Fireware OS
Default >= 2025.1, < 2026.2.1>= 2026.2.1, >= 12.0, < 12.12.1, >= 11.10.2, <= 11.12.4+541730
T15/T35 >= 12.0, < 12.5.19>= 12.5.19
EUCC >= 12.0, < 12.11.9>= 12.11.9

Weakness Type and Impact #

Exploitation Status #

WatchGuard is not aware of any exploitation of this vulnerability in the wild.

Solution #

Fireware OS 2026.2.1, Fireware OS 12.0, Fireware OS 11.10.2, Fireware OS 12.5.19, Fireware OS 12.11.9

References #

Credits #

  • Cody Sixteenfinder