CVE-2026-78617

Medium

Description

WatchGuard Dimension's web login endpoint does not enforce effective rate-limiting or account lockout by default allowing a remote attacker to perform automated password guessing against user accounts. If the account lockout setting is enabled, brute-force attempts are blocked after a defined number of failed attempts, but this setting is not enabled by default.

SeverityMedium

CVSS6.3

Exploit probability—

ProductDimension

PublishedAug 28, 2026

First seenAug 28, 2026

Weakness typeCWE-203CWE-203 CWE-307CWE-307

How to fix

Update

WatchGuard Dimension2.3.1 or later

Vendor advisories

psirt.watchguard.com/CVE-2026-78617

Affected products

Product	Affected versions	Fixed in
WatchGuard Dimension	2.0 ≤ v < 2.3.1	2.3.1

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