CVE-2026-13084 Details
Description
A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. This vulnerability affects both 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 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2
A null pointer dereference vulnerability has been identified in WatchGuard Fireware OS. This vulnerability may allow a remote, unauthenticated attacker to create a denial-of-service condition by sending specially crafted IKEv2 messages. It affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2, when configured with a dynamic gateway peer. The vulnerability is present in Fireware OS versions 11.10.2 prior to 11.12.4_Update1, 12.0 prior to 12.12, 12.5 prior to 12.5.18, and 2025.1 prior to 2026.2.
Users on Fireware OS 2025.1 should update to version 2026.2.1. Users on Fireware OS 12.x should update to version 12.12.1. For Fireware OS 12.5.x on T15 & T35 models, no resolution is currently available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://psirt.watchguard.com/CVE-2026-13084 | WatchGuard Technologies, Inc. | Broken Link |
| https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00024 | WatchGuard Technologies, Inc. | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | WatchGuard Technologies, Inc. |
Affected Products
| Product | Versions |
|---|---|
| watchguard fireware | >= 12.5, < 12.5.19 >= 11.0.0, < 11.12.4 11.12.4 - 11.12.4 u1 >= 12.0, < 12.12.1 >= 2025.1, < 2026.2.1 |
CPE
Remediation
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| watchguard firebox t15 | All versions |
CPE
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| watchguard firebox t35 | All versions |
CPE
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| watchguard firebox cloud | All versions |
CPE
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| watchguard firebox m270 | All versions |
CPE
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| watchguard firebox m290 | All versions |
CPE
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| watchguard firebox m370 | All versions |
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| watchguard firebox m390 | All versions |
CPE
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| watchguard firebox m440 | All versions |
CPE
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| watchguard firebox m4600 | All versions |
CPE
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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 |
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| watchguard firebox m5800 | All versions |
CPE
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| watchguard firebox m590 | All versions |
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| watchguard firebox m670 | All versions |
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| watchguard firebox m690 | All versions |
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| watchguard firebox nv5 | All versions |
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| watchguard firebox t20 | All versions |
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| watchguard firebox t25 | All versions |
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| watchguard firebox t40 | All versions |
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| watchguard firebox t45 | All versions |
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| watchguard firebox t55 | All versions |
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| watchguard firebox t70 | All versions |
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| watchguard firebox t80 | All versions |
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| watchguard firebox t85 | All versions |
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| watchguard fireboxv | All versions |
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| watchguard firebox m295 | All versions |
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| watchguard firebox m395 | All versions |
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| watchguard firebox m495 | All versions |
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| watchguard firebox m595 | All versions |
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| watchguard firebox m695 | All versions |
CPE
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| watchguard firebox t115-w | All versions |
CPE
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| watchguard firebox t125 | All versions |
CPE
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| watchguard firebox t125-w | All versions |
CPE
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| watchguard firebox t145 | All versions |
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| watchguard firebox t145-w | All versions |
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| watchguard firebox t185 | All versions |
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 28, 2026 | CVE Modified | WatchGuard Technologies, Inc. |
| Aug 14, 2026 | Initial Analysis | [email protected] |
| Aug 10, 2026 | CVE Modified | WatchGuard Technologies, Inc. |
| Jul 6, 2026 | CVE Modified | CISA-ADP |
| Jul 3, 2026 | New CVE Received | WatchGuard Technologies, Inc. |