CVE-2026-13368

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

State: Published
Severity: 9.2 Critical
Published: Jul 2, 2026
Updated: Aug 27, 2026
Reserved: Jun 25, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.2 Critical	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	WatchGuard

Weaknesses

CWE-416

Affected Products

Product	Versions
Fireware OSWatchGuard	2025.1 to before 2026.2.1Affected 12.0 to before 12.12.1Not affected 11.10.2 through 11.12.4+541730Not affected
Fireware OSWatchGuard	12.0 to before 12.11.9Affected
Fireware OSWatchGuard	12.0 to before 12.5.19Affected

References

https://psirt.watchguard.com/CVE-2026-13368vendor-advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00023vendor-advisory

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