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HIGH · 7.5

CVE-2026-13084

A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages...

Vulnerability Description

A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer. This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
WatchguardFireware>= 12.5, < 12.5.19
WatchguardFirebox T15-
WatchguardFirebox T35-
WatchguardFirebox Cloud-
WatchguardFirebox M270-
WatchguardFirebox M290-
WatchguardFirebox M370-
WatchguardFirebox M390-
WatchguardFirebox M440-
WatchguardFirebox M4600-
WatchguardFirebox M470-
WatchguardFirebox M4800-
WatchguardFirebox M5600-
WatchguardFirebox M570-
WatchguardFirebox M5800-
WatchguardFirebox M590-
WatchguardFirebox M670-
WatchguardFirebox M690-
WatchguardFirebox Nv5-
WatchguardFirebox T20-

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2026-13084?

CVE-2026-13084 is a vulnerability with a CVSS score of 7.5 (HIGH). A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages...

How severe is CVE-2026-13084?

CVE-2026-13084 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13084?

Check the references section above for vendor advisories and patch information. Affected products include: Watchguard Fireware, Watchguard Firebox T15, Watchguard Firebox T35, Watchguard Firebox Cloud, Watchguard Firebox M270.