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HIGH · 7.5

CVE-2025-11838

A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office...

Vulnerability Description

A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in 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 12.6.1 up to and including 12.11.4 and 2025.1 up to and including 2025.1.2.

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>= 2025.1, < 2025.1.3
WatchguardFirebox T115-W-
WatchguardFirebox T125-
WatchguardFirebox T125-W-
WatchguardFirebox T145-
WatchguardFirebox T145-W-
WatchguardFirebox T185-
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-

Related Weaknesses (CWE)

CWE-763

References

FAQ

What is CVE-2025-11838?

CVE-2025-11838 is a vulnerability with a CVSS score of 7.5 (HIGH). A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office...

How severe is CVE-2025-11838?

CVE-2025-11838 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-2025-11838?

Check the references section above for vendor advisories and patch information. Affected products include: Watchguard Fireware, Watchguard Firebox T115-W, Watchguard Firebox T125, Watchguard Firebox T125-W, Watchguard Firebox T145.