WatchGuard Firebox iked Memory Corruption Vulnerability
Advisory ID
WGSA-2025-00018
CVE
CVE-2025-11838
Impact
High
Status
Resolved
Product Family
Firebox
Published Date
Updated Date
Workaround Available
False
CVSS Score
8.7
CVSS 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
Summary
Updated December 15 2025: Narrowed the scope of affected FirewareOS versions.
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.
Affected
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.
Resolution
| Vulnerable Version | Resolved Version |
|---|---|
| 2025.1 | 2025.1.3 |
| 12.x | 12.11.5 |
Credits
McCaulay Hudson (@_McCaulay) of watchTowr
Advisory Product List
| Product Family | Product Branch | Product List |
|---|---|---|
Firebox
|
Fireware OS 2025.1.x | T115-W, T125, T125-W, T145, T145-W, T185, M295, M395, M495, M595, M695 |
Firebox
|
Fireware OS 12.x | T20, T25, T40, T45, T55, T70, T80, T85, M270, M290, M370, M390, M470, M570, M590, M670, M690, M440, M4600, M4800, M5600, M5800, Firebox Cloud, Firebox NV5, FireboxV |