High severity · published Jul 2, 2026
CVE-2026-13368
WatchGuard Firebox Race Condition and Use-After-Free in Mobile VPN with IKEv2 LDAP Authentication
8.1
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fireware OS · WatchGuard
2025.1 before 2026.2.1; 12.0 before 12.11.9; 12.0 before 12.5.19 · source: vendor
FI
Fireware · Watchguard
2025.1 before 2026.2.1; 12.5 before 12.5.19; 11.0.0 before 11.12.4; 11.12.4; 11.12.4; 12.0 before 12.12.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13368
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13368
Broken Link
https://psirt.watchguard.com/CVE-2026-13368
Vendor Advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00023
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