CVE-2025-11838
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-04

Last updated on: 2025-12-16

Assigner: WatchGuard Technologies, Inc.

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.
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Meta Information
Published
2025-12-04
Last Modified
2025-12-16
Generated
2026-06-16
AI Q&A
2025-12-05
EPSS Evaluated
2026-06-15
NVD
CVE-2025-11838
Affected Vendors & Products
Showing 33 associated CPEs
Vendor Product Version / Range
watchguard fireware From 2025.1 (inc) to 2025.1.3 (exc)
watchguard firebox_t115-w *
watchguard firebox_t125 *
watchguard firebox_t125-w *
watchguard firebox_t145 *
watchguard firebox_t145-w *
watchguard firebox_t185 *
watchguard fireware From 12.0.0 (inc) to 12.11.5 (exc)
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_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 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-763 The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.
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Executive Summary

This vulnerability is a memory corruption issue in WatchGuard Fireware OS that allows an unauthenticated attacker to cause a Denial of Service (DoS) condition. It affects the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.

Impact Analysis

An attacker exploiting this vulnerability can cause a Denial of Service (DoS) condition, potentially disrupting VPN services and preventing legitimate users from accessing network resources.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your WatchGuard Fireware OS to version 12.11.5 or later, or 2025.1.3 or later, as these versions contain the fix for the vulnerability. There is no workaround available, so applying the update is the immediate and recommended step. [1]

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