CVE-2026-13084: CWE-476 in WatchGuard Fireware OS
CVE-2026-13084 is a null pointer dereference vulnerability in WatchGuard Fireware OS that can be triggered remotely without authentication. It affects the Mobile User VPN and Branch Office VPN when using IKEv2 with a dynamic gateway peer configuration. Successful exploitation may cause a denial-of-service (DoS) condition. The vulnerability impacts multiple versions of Fireware OS, including 11.10.2 through 11.12.4_Update1, 12.0 through 12.12, and 2025.1 through 2026.2. The CVSS v3.1 base score is 8.7, indicating high severity. No known exploits are reported in the wild, and no patch or remediation information is provided in the available data.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-13084) is a null pointer dereference (CWE-476) in WatchGuard Fireware OS affecting IKEv2 VPN components configured with dynamic gateway peers. An unauthenticated remote attacker can send specially crafted IKEv2 messages to trigger a denial-of-service condition by causing the system to dereference a null pointer. The affected versions include Fireware OS 11.10.2 up to 11.12.4_Update1, 12.0 up to 12.12, and 2025.1 up to 2026.2. The vulnerability has a CVSS v3.1 score of 8.7 (high severity), with network attack vector, no privileges or user interaction required, and high impact on availability. There is no vendor advisory or patch information provided in the input data.
Potential Impact
A remote unauthenticated attacker can cause a denial-of-service (DoS) condition on affected WatchGuard Fireware OS devices by sending crafted IKEv2 messages. This disrupts VPN services for Mobile User VPN and Branch Office VPN configured with dynamic gateway peers, potentially impacting network availability and connectivity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data. Until a patch is available, consider limiting exposure of IKEv2 services to untrusted networks or applying network-level controls to restrict access to VPN endpoints.
CVE-2026-13084: CWE-476 in WatchGuard Fireware OS
Description
CVE-2026-13084 is a null pointer dereference vulnerability in WatchGuard Fireware OS that can be triggered remotely without authentication. It affects the Mobile User VPN and Branch Office VPN when using IKEv2 with a dynamic gateway peer configuration. Successful exploitation may cause a denial-of-service (DoS) condition. The vulnerability impacts multiple versions of Fireware OS, including 11.10.2 through 11.12.4_Update1, 12.0 through 12.12, and 2025.1 through 2026.2. The CVSS v3.1 base score is 8.7, indicating high severity. No known exploits are reported in the wild, and no patch or remediation information is provided in the available data.
CVSS v4.0
Score 8.7high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-13084) is a null pointer dereference (CWE-476) in WatchGuard Fireware OS affecting IKEv2 VPN components configured with dynamic gateway peers. An unauthenticated remote attacker can send specially crafted IKEv2 messages to trigger a denial-of-service condition by causing the system to dereference a null pointer. The affected versions include Fireware OS 11.10.2 up to 11.12.4_Update1, 12.0 up to 12.12, and 2025.1 up to 2026.2. The vulnerability has a CVSS v3.1 score of 8.7 (high severity), with network attack vector, no privileges or user interaction required, and high impact on availability. There is no vendor advisory or patch information provided in the input data.
Potential Impact
A remote unauthenticated attacker can cause a denial-of-service (DoS) condition on affected WatchGuard Fireware OS devices by sending crafted IKEv2 messages. This disrupts VPN services for Mobile User VPN and Branch Office VPN configured with dynamic gateway peers, potentially impacting network availability and connectivity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data. Until a patch is available, consider limiting exposure of IKEv2 services to untrusted networks or applying network-level controls to restrict access to VPN endpoints.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-w44g-4gmf-m2ww
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-13084"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7f43e9bf8831d5395d6145
Added to database: 08/14/2026, 16:35:53 UTC
Last enriched: 09/12/2026, 03:17:17 UTC
Last updated: 09/27/2026, 01:47:40 UTC
Views: 49
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