CVE-2026-13368: CWE-416 in WatchGuard Fireware OS
CVE-2026-13368 is a critical use-after-free vulnerability in WatchGuard Fireware OS affecting the LDAP authentication component for Mobile User VPN with IKEv2. It arises from a race condition that can be exploited remotely by an unauthenticated attacker to execute arbitrary code within the iked process. This vulnerability impacts Fireboxes configured to use an external LDAP authentication server for Mobile VPN with IKEv2.
AI Analysis
Technical Summary
WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability (CWE-416) in the LDAP authentication mechanism for Mobile User VPN with IKEv2. An unauthenticated remote attacker could exploit this flaw to execute arbitrary code in the context of the iked process on affected Fireboxes configured with an external LDAP authentication server. The CVSS v3.1 base score is 9.2, indicating critical severity. The vulnerability affects versions >=12.0 <=12.12 and >=2025.1 <=2026.2 of Fireware OS. No known exploits in the wild or patch information is provided in the input data.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary code with the privileges of the iked process on vulnerable Fireboxes. This could lead to full compromise of the affected device's VPN authentication component, potentially undermining network security and confidentiality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, consider disabling Mobile User VPN with IKEv2 LDAP authentication or applying any recommended temporary mitigations from WatchGuard. Monitor official WatchGuard communications for updates.
CVE-2026-13368: CWE-416 in WatchGuard Fireware OS
Description
CVE-2026-13368 is a critical use-after-free vulnerability in WatchGuard Fireware OS affecting the LDAP authentication component for Mobile User VPN with IKEv2. It arises from a race condition that can be exploited remotely by an unauthenticated attacker to execute arbitrary code within the iked process. This vulnerability impacts Fireboxes configured to use an external LDAP authentication server for Mobile VPN with IKEv2.
CVSS v4.0
Score 9.2critical
Affected software
pkg:github/watchguard/fireware-osRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability (CWE-416) in the LDAP authentication mechanism for Mobile User VPN with IKEv2. An unauthenticated remote attacker could exploit this flaw to execute arbitrary code in the context of the iked process on affected Fireboxes configured with an external LDAP authentication server. The CVSS v3.1 base score is 9.2, indicating critical severity. The vulnerability affects versions >=12.0 <=12.12 and >=2025.1 <=2026.2 of Fireware OS. No known exploits in the wild or patch information is provided in the input data.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary code with the privileges of the iked process on vulnerable Fireboxes. This could lead to full compromise of the affected device's VPN authentication component, potentially undermining network security and confidentiality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, consider disabling Mobile User VPN with IKEv2 LDAP authentication or applying any recommended temporary mitigations from WatchGuard. Monitor official WatchGuard communications for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fp7c-rxxp-rx8q
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-13368"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7f43ebbf8831d5395d62e6
Added to database: 08/14/2026, 16:35:55 UTC
Last enriched: 09/12/2026, 03:17:07 UTC
Last updated: 09/29/2026, 18:11:16 UTC
Views: 56
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.