Critical [CVE-2026-13368] WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2
This critical-severity WatchGuard advisory covers CVE-2026-13368 affecting Fireware OS.
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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.
- Fireware OS 2025.1 before 2026.2.1
- Fireware OS 12.0 before 12.5.19
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
- 2026.2.1
- 12.5.19
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
Mitigation
Upgrade to a fixed release: 2026.2.1, 12.5.19. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
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