Vulnerability · Published Aug 25, 2026 · Assigned by WatchGuard
CVE-2026-57909WatchGuard Agent path traversal allows unauthenticated remote code execution
Critical 9.4
In plain English
A critical-severity missing authentication in WatchGuard Agent from WatchGuard. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 4.0)9.4Critical
Exploit odds (30 days)0.4%top 64.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WatchGuard | WatchGuard Agent | 0 – before 1.25.13.0000 |
Weakness: CWE-306, CWE-94 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References
- https://psirt.watchguard.com/CVE-2026-57909 vendor-advisory