Quick answers
- Is CVE-2026-13084 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-13084 being exploited in the wild.
- How severe is CVE-2026-13084?
- Informational severity, with a CVSS score of 8.7, published 3 July 2026.
- Which products and versions are affected?
- Watchguard Fireware 11.10.2 - 11.12.4_Update1, 12.0 - 12.12, 12.5 - 12.5.18, 2025.1 - 2026.2.
- Is there a fix for CVE-2026-13084?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-13084 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-13084?
- Check whether you run Watchguard Fireware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A NULL pointer dereference vulnerability exists in the 'iked' process of WatchGuard Fireware OS. The flaw is triggered when the system processes specially crafted IKEv2 messages. It specifically impacts configurations involving Mobile User VPN with IKEv2 and Branch Office VPN using IKEv2 with a dynamic gateway peer. An unauthenticated remote attacker can exploit this to cause a crash of the VPN service or the entire device, resulting in a denial-of-service (DoS). Patches are available in versions 12.12.1 and 2026.2.1, though some older versions (11.x and 12.5.x) remain unresolved or are End of Life.
Affected products
- WatchGuard Fireware OS 11.10.2 - 11.12.4_Update1, 12.0 - 12.12, 12.5 - 12.5.18, 2025.1 - 2026.2
Timeline
- 2026-07-02: advisory: Initial advisory published by WatchGuard
- 2026-07-03: disclosed: NVD publication date