Firebox and Fireware OS
CVE-2026-13108: Dimension Denial-of-Service
WatchGuard Dimension is susceptible to a denial-of-service condition when an attacker sends a high volume of TCP SYN packets to the log listening service.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Dimension 2.0 | 2.3.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
WatchGuard Dimension is susceptible to a denial-of-service condition when an attacker sends a high volume of TCP SYN packets to the log listening service.
Workarounds
The vulnerability exploit requires a high volume of TCP SYN packets over a short duration and is mitigated by deploying the Dimension server behind a firewall that provides rate limiting protections.
Exploitation
WatchGuard is not aware of any exploitation of this vulnerability in the wild.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.