CVE-2026-13368

EUVD-2026-41456
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 60.27%
Affected Products (NVD)
VendorProductVersion
watchguardfireware
2025.1 ≤
𝑥
< 2026.2.1
watchguardfireware
12.5 ≤
𝑥
< 12.5.19
watchguardfireware
11.0.0 ≤
𝑥
< 11.12.4
watchguardfireware
11.12.4
watchguardfireware
11.12.4:u1
watchguardfireware
12.0 ≤
𝑥
< 12.12.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://psirt.watchguard.com/CVE-2026-13368
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00023