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CVE-2025-11838 Details
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.
A memory corruption vulnerability has been identified in WatchGuard Fireware OS. This vulnerability may allow an unauthenticated attacker to cause a denial-of-service condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2, when configured with a dynamic gateway peer. The issue affects Fireware OS versions 12.0 through 12.11.4, as well as 2025.1 versions up to and including 2025.1.2.
Users can upgrade to Fireware OS 12.11.5 or 2025.1.3 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CNA: WatchGuard Technologies, Inc.CVSS-B:8.7 HIGHVector: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
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 5, 2025Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://psirt.watchguard.com/CVE-2025-11838 | WatchGuard Technologies, Inc. | |
| https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018 | WatchGuard Technologies, Inc. | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-763 | Release of Invalid Pointer or Reference | WatchGuard Technologies, Inc. |
Affected Products
| Product | Versions |
|---|---|
| watchguard fireware | >= 2025.1, < 2025.1.3 >= 12.0.0, < 12.11.5 |
CPE
Remediation
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| watchguard firebox t115-w | All versions |
CPE
Remediation
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| watchguard firebox t125 | All versions |
CPE
Remediation
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| watchguard firebox t125-w | All versions |
CPE
Remediation
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| watchguard firebox t145 | All versions |
CPE
Remediation
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| watchguard firebox t145-w | All versions |
CPE
Remediation
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| watchguard firebox t185 | All versions |
CPE
Remediation
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| watchguard firebox m270 | All versions |
CPE
Remediation
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| watchguard firebox m290 | All versions |
CPE
Remediation
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| watchguard firebox m370 | All versions |
CPE
Remediation
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| watchguard firebox m390 | All versions |
CPE
Remediation
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| watchguard firebox m440 | All versions |
CPE
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| watchguard firebox m4600 | All versions |
CPE
Remediation
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| watchguard firebox m470 | All versions |
CPE
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| watchguard firebox m4800 | All versions |
CPE
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| watchguard firebox m5600 | All versions |
CPE
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| watchguard firebox m570 | All versions |
CPE
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| watchguard firebox m5800 | All versions |
CPE
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| watchguard firebox m590 | All versions |
CPE
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| watchguard firebox m670 | All versions |
CPE
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| watchguard firebox m690 | All versions |
CPE
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| watchguard firebox nv5 | All versions |
CPE
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| watchguard firebox t20 | All versions |
CPE
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| watchguard firebox t25 | All versions |
CPE
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| watchguard firebox t40 | All versions |
CPE
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| watchguard firebox t45 | All versions |
CPE
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| watchguard firebox t55 | All versions |
CPE
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| watchguard firebox t70 | All versions |
CPE
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| watchguard firebox t80 | All versions |
CPE
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| watchguard firebox t85 | All versions |
CPE
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| watchguard fireboxcloud | All versions |
CPE
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| watchguard fireboxv | All versions |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 25, 2026 | CVE Translated | [email protected] |
| Aug 10, 2026 | CVE Modified | WatchGuard Technologies, Inc. |
| Jun 17, 2026 | CVE Modified | WatchGuard Technologies, Inc. |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 16, 2025 | CVE Modified | WatchGuard Technologies, Inc. |
| Dec 10, 2025 | Initial Analysis | [email protected] |
| Dec 4, 2025 | New CVE Received | WatchGuard Technologies, Inc. |