CVE-2025-11838 - Vulnerability Details

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00067.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

WatchGuard

Fireware OS

unaffected

Version	Status	Constraints
`12.6.1`	affected	≤ 12.11.4
`2025.1`	affected	≤ 2025.1.2

Configuration 1 [-]

AND

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:watchguard:firebox_t115-w:-:::::::*
	cpe:2.3:h:watchguard:firebox_t125:-:::::::*
	cpe:2.3:h:watchguard:firebox_t125-w:-:::::::*
	cpe:2.3:h:watchguard:firebox_t145:-:::::::*
	cpe:2.3:h:watchguard:firebox_t145-w:-:::::::*
	cpe:2.3:h:watchguard:firebox_t185:-:::::::*

Configuration 2 [-]

AND

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:watchguard:firebox_m270:-:::::::*
	cpe:2.3:h:watchguard:firebox_m290:-:::::::*
	cpe:2.3:h:watchguard:firebox_m370:-:::::::*
	cpe:2.3:h:watchguard:firebox_m390:-:::::::*
	cpe:2.3:h:watchguard:firebox_m440:-:::::::*
	cpe:2.3:h:watchguard:firebox_m4600:-:::::::*
	cpe:2.3:h:watchguard:firebox_m470:-:::::::*
	cpe:2.3:h:watchguard:firebox_m4800:-:::::::*
	cpe:2.3:h:watchguard:firebox_m5600:-:::::::*
	cpe:2.3:h:watchguard:firebox_m570:-:::::::*
	cpe:2.3:h:watchguard:firebox_m5800:-:::::::*
	cpe:2.3:h:watchguard:firebox_m590:-:::::::*
	cpe:2.3:h:watchguard:firebox_m670:-:::::::*
	cpe:2.3:h:watchguard:firebox_m690:-:::::::*
	cpe:2.3:h:watchguard:firebox_nv5:-:::::::*
	cpe:2.3:h:watchguard:firebox_t20:-:::::::*
	cpe:2.3:h:watchguard:firebox_t25:-:::::::*
	cpe:2.3:h:watchguard:firebox_t40:-:::::::*
	cpe:2.3:h:watchguard:firebox_t45:-:::::::*
	cpe:2.3:h:watchguard:firebox_t55:-:::::::*
	cpe:2.3:h:watchguard:firebox_t70:-:::::::*
	cpe:2.3:h:watchguard:firebox_t80:-:::::::*
	cpe:2.3:h:watchguard:firebox_t85:-:::::::*
	cpe:2.3:h:watchguard:fireboxcloud:-:::::::*
	cpe:2.3:h:watchguard:fireboxv:-:::::::*

No data.

Project Subscriptions

Vendors	Products
Watchguard Subscribe	Firebox M270 Subscribe Firebox M290 Subscribe Firebox M370 Subscribe Firebox M390 Subscribe Firebox M440 Subscribe Firebox M4600 Subscribe Firebox M470 Subscribe Firebox M4800 Subscribe Firebox M5600 Subscribe Firebox M570 Subscribe Firebox M5800 Subscribe Firebox M590 Subscribe Firebox M670 Subscribe Firebox M690 Subscribe Firebox Nv5 Subscribe Firebox T115-w Subscribe Firebox T125 Subscribe Firebox T125-w Subscribe Firebox T145 Subscribe Firebox T145-w Subscribe Firebox T185 Subscribe Firebox T20 Subscribe Firebox T25 Subscribe Firebox T40 Subscribe Firebox T45 Subscribe Firebox T55 Subscribe Firebox T70 Subscribe Firebox T80 Subscribe Firebox T85 Subscribe Fireboxcloud Subscribe Fireboxv Subscribe Fireware Subscribe Fireware Os Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018

History

Mon, 15 Dec 2025 23:30:00 +0000

Type	Values Removed	Values Added
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 12.0 up to and including 12.11.4 and 2025.1 up to and including 2025.1.2.	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.
CPEs	~~cpe:2.3:a:watchguard:fireware_os:::::::*:12.0~~	cpe:2.3:a:watchguard:fireware_os:::::::*:12.6.1

Wed, 10 Dec 2025 15:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Watchguard firebox M270 Watchguard firebox M290 Watchguard firebox M370 Watchguard firebox M390 Watchguard firebox M440 Watchguard firebox M4600 Watchguard firebox M470 Watchguard firebox M4800 Watchguard firebox M5600 Watchguard firebox M570 Watchguard firebox M5800 Watchguard firebox M590 Watchguard firebox M670 Watchguard firebox M690 Watchguard firebox Nv5 Watchguard firebox T115-w Watchguard firebox T125 Watchguard firebox T125-w Watchguard firebox T145 Watchguard firebox T145-w Watchguard firebox T185 Watchguard firebox T20 Watchguard firebox T25 Watchguard firebox T40 Watchguard firebox T45 Watchguard firebox T55 Watchguard firebox T70 Watchguard firebox T80 Watchguard firebox T85 Watchguard fireboxcloud Watchguard fireboxv Watchguard fireware
CPEs		cpe:2.3:h:watchguard:firebox_m270:-:::::::* cpe:2.3:h:watchguard:firebox_m290:-:::::::* cpe:2.3:h:watchguard:firebox_m370:-:::::::* cpe:2.3:h:watchguard:firebox_m390:-:::::::* cpe:2.3:h:watchguard:firebox_m440:-:::::::* cpe:2.3:h:watchguard:firebox_m4600:-:::::::* cpe:2.3:h:watchguard:firebox_m470:-:::::::* cpe:2.3:h:watchguard:firebox_m4800:-:::::::* cpe:2.3:h:watchguard:firebox_m5600:-:::::::* cpe:2.3:h:watchguard:firebox_m570:-:::::::* cpe:2.3:h:watchguard:firebox_m5800:-:::::::* cpe:2.3:h:watchguard:firebox_m590:-:::::::* cpe:2.3:h:watchguard:firebox_m670:-:::::::* cpe:2.3:h:watchguard:firebox_m690:-:::::::* cpe:2.3:h:watchguard:firebox_nv5:-:::::::* cpe:2.3:h:watchguard:firebox_t115-w:-:::::::* cpe:2.3:h:watchguard:firebox_t125-w:-:::::::* cpe:2.3:h:watchguard:firebox_t125:-:::::::* cpe:2.3:h:watchguard:firebox_t145-w:-:::::::* cpe:2.3:h:watchguard:firebox_t145:-:::::::* cpe:2.3:h:watchguard:firebox_t185:-:::::::* cpe:2.3:h:watchguard:firebox_t20:-:::::::* cpe:2.3:h:watchguard:firebox_t25:-:::::::* cpe:2.3:h:watchguard:firebox_t40:-:::::::* cpe:2.3:h:watchguard:firebox_t45:-:::::::* cpe:2.3:h:watchguard:firebox_t55:-:::::::* cpe:2.3:h:watchguard:firebox_t70:-:::::::* cpe:2.3:h:watchguard:firebox_t80:-:::::::* cpe:2.3:h:watchguard:firebox_t85:-:::::::* cpe:2.3:h:watchguard:fireboxcloud:-:::::::* cpe:2.3:h:watchguard:fireboxv:-:::::::* cpe:2.3:o:watchguard:fireware::::::::
Vendors & Products		Watchguard firebox M270 Watchguard firebox M290 Watchguard firebox M370 Watchguard firebox M390 Watchguard firebox M440 Watchguard firebox M4600 Watchguard firebox M470 Watchguard firebox M4800 Watchguard firebox M5600 Watchguard firebox M570 Watchguard firebox M5800 Watchguard firebox M590 Watchguard firebox M670 Watchguard firebox M690 Watchguard firebox Nv5 Watchguard firebox T115-w Watchguard firebox T125 Watchguard firebox T125-w Watchguard firebox T145 Watchguard firebox T145-w Watchguard firebox T185 Watchguard firebox T20 Watchguard firebox T25 Watchguard firebox T40 Watchguard firebox T45 Watchguard firebox T55 Watchguard firebox T70 Watchguard firebox T80 Watchguard firebox T85 Watchguard fireboxcloud Watchguard fireboxv Watchguard fireware
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}`

Fri, 05 Dec 2025 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 04 Dec 2025 22:00:00 +0000

Type	Values Removed	Values Added
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 12.0 up to and including 12.11.4 and 2025.1 up to and including 2025.1.2.
Title		WatchGuard Firebox iked Memory Corruption Vulnerability
First Time appeared		Watchguard Watchguard fireware Os
Weaknesses		CWE-763
CPEs		cpe:2.3:a:watchguard:fireware_os::::::::12.0 cpe:2.3:a:watchguard:fireware_os::::::::2025.1
Vendors & Products		Watchguard Watchguard fireware Os
References		https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018
Metrics		cvssV4_0 `{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: WatchGuard

Published: 2025-12-04T21:48:10.961Z

Updated: 2025-12-15T23:18:30.406Z

Reserved: 2025-10-16T06:58:57.085Z

Link: CVE-2025-11838

Vulnrichment

Updated: 2025-12-05T15:44:27.484Z

NVD

Status : Modified

Published: 2025-12-04T22:15:46.610

Modified: 2025-12-16T00:16:01.427

Link: CVE-2025-11838

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-763

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Exploitation none

Automatable yes

Technical Impact partial

Project Subscriptions

Projects

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