CVE-2026-6788 Uncontrolled search path in PluginLauncher allows SYSTEM code execution in WatchGuard Agent

High 8.5 Published Updated

An attacker can execute arbitrary code with SYSTEM privileges in WatchGuard Agent on Windows by exploiting an uncontrolled search path vulnerability.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-6788?

CVE-2026-6788 is a high-severity vulnerability in WatchGuard Agent, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Uncontrolled Search Path Element vulnerability in WatchGuard Agent on Windows allows Using Malicious Files.

Weakness: CWE-427

Which versions are affected by CVE-2026-6788?

It affects 1 product.

Products include Watchguard Agent.

How do I fix CVE-2026-6788?

No fix has been published for CVE-2026-6788 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-6788 being exploited?

There is no known exploitation of CVE-2026-6788 in the wild and no public exploit code.

Sources

Also known as GHSA-j336-jmmp-f6w9.

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