CVE-2026-13084 Null Pointer Dereference in WatchGuard Fireware OS iked Process

What is CVE-2026-13084?

CVE-2026-13084 is a high-severity vulnerability in Watchguard Fireware, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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

Weakness: CWE-476

Which versions are affected by CVE-2026-13084?

It affects 1 product.

Products include Watchguard Fireware.

How do I fix CVE-2026-13084?

No fix has been published for CVE-2026-13084 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-13084 being exploited?

There is no known exploitation of CVE-2026-13084 in the wild and no public exploit code.

Other vulnerabilities in Watchguard Fireware

• CVE-2022-26318 WatchGuard Firebox and XTM Appliances Arbitrary Code Execution Exploited Critical 9.8
• CVE-2025-14733 WatchGuard Firebox Out of Bounds Write Exploited Critical 9.3
• CVE-2025-9242 WatchGuard Firebox Out-of-Bounds Write Exploited Critical 9.3
• CVE-2022-23176 WatchGuard Firebox and XTM Privilege Escalation Exploited High 8.8
• CVE-2022-31789 Integer overflow in n/a Critical 9.8

All Watchguard Fireware vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w44g-4gmf-m2ww.