Firebox and Fireware OS
CVE-2026-13079: WatchGuard Mobile VPN with SSL Windows Client Local Privilege Escalation
A local privilege escalation vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker to escalate their privileges to NT AUTHORITY\SYSTEM on the machine where the client is installed.
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 |
|---|---|
| Mobile VPN with SSL Client (Windows) 12.0 | 2026.2.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A local privilege escalation vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker to escalate their privileges to NT AUTHORITY\SYSTEM on the machine where the client is installed.
This issue affects the Mobile VPN with SSL client for Windows up to and including 2026.2.
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.