CVE-2026-57909 WatchGuard Agent path traversal allows unauthenticated remote code execution
Unauthenticated remote attackers on adjacent networks can execute arbitrary code via a path traversal flaw in WatchGuard Agent.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57909?
CVE-2026-57909 is a critical path traversal vulnerability in WatchGuard Agent, published on 25 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A path traversal vulnerability in WatchGuard Agent allows a remote, unauthenticated attacker on an adjacent network to execute arbitrary code on an affected system.
Which versions are affected by CVE-2026-57909?
How do I fix CVE-2026-57909?
No fix has been published for CVE-2026-57909 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-57909 being exploited?
There is no known exploitation of CVE-2026-57909 in the wild and no public exploit code.
Sources
Also known as GHSA-6fjc-c8m9-93pm.