CVE-2026-57910

Critical

Description

Improper authentication in the WatchGuard Agent allows an unauthenticated attacker with network access to cause the agent to execute arbitrary code with elevated privileges.

SeverityCritical

CVSS9.3

Exploit probability—

ProductWatchGuard Agent

PublishedAug 25, 2026

First seenAug 25, 2026

Weakness typeCWE-306Missing authentication for critical function CWE-347CWE-347 CWE-494CWE-494

How to fix

Update

WatchGuard WatchGuard Agent1.17.01.0000, 1.25.13.0000, 1.17.21.0000 or later

Vendor advisories

psirt.watchguard.com/CVE-2026-57910

Affected products

Product	Affected versions	Fixed in
WatchGuard WatchGuard Agent	v < 1.17.01.0000, v < 1.25.13.0000, v < 1.17.21.0000	1.17.01.0000, 1.25.13.0000, 1.17.21.0000

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