CVE-2026-6787 Usage of a hard-coded cryptographic key in WatchGuard Agent allows inclusion of code into existing process
Hard-coded cryptographic keys in WatchGuard Agent allow attackers to inject code into existing processes on Windows systems.
- 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-2026-6787?
CVE-2026-6787 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
Use of Hard-coded Cryptographic Key vulnerability in WatchGuard Agent on Windows allows Inclusion of Code in Existing Process.
Weakness: CWE-321
Which versions are affected by CVE-2026-6787?
It affects 1 product.
Products include Watchguard Agent.
How do I fix CVE-2026-6787?
No fix has been published for CVE-2026-6787 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6787 being exploited?
There is no known exploitation of CVE-2026-6787 in the wild and no public exploit code.
Other vulnerabilities in WatchGuard Agent
- CVE-2026-6788 Uncontrolled search path in PluginLauncher allows SYSTEM code execution in WatchGuard Agent
- CVE-2026-41288 WatchGuard Agent on Windows Privilege Escalation Vulnerability
- CVE-2026-41286 Stack-based Buffer Overflow in WatchGuard Agent Discovery Service on Windows Causes Denial of Service - Variant B
- CVE-2026-41287 Stack-based Buffer Overflow in WatchGuard Agent Discovery Service on Windows Causes Denial of Service - Variant A
Sources
Also known as GHSA-m376-6rq6-f84p.