Paper/Archive/CVE-2026-13368

CVE-2026-13368

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

EPSS 0.9%CVSS 9.2

critical.is priorityof 100

CVSS 9.2 (CNA)9.2 / 10 × 3027.6 Not in CISA KEV+300.0 EPSS percentile 60.8.608 × 2012.2 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Fireware OS2025.1 – < 2026.2.12026.2.1CNA

Fireware OS12.0 – < 12.11.912.11.9CNA

Fireware OS12.0 – < 12.5.1912.5.19CNA

Scores by source

WatchGuard (CNA)9.2CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorypsirt.watchguard.com/CVE-2026-13368 advisorywatchguard.com/wgrd-psirt/advisory/wgsa-2026-00023