CVE-2026-41446

Critical

Description

Snap One WattBox 800 and 820 series firmware versions prior to 2.10.0.0 contain undisclosed diagnostic HTTP endpoints that require only the device MAC address and service tag for authentication, both of which are printed in plaintext on the physical device label. Attackers with access to the device label or documentation containing these values can authenticate to the several endpoints and execute arbitrary commands as root on the device.

SeverityCritical

CVSS9.8

Exploit probability—

ProductWattBox 800

PublishedApr 28, 2026

First seenApr 28, 2026

Weakness typeCWE-912CWE-912 CWE-798Hard-coded credentials

How to fix

Update

Snap One, LLC WattBox 8002.10.0.0 or later
Snap One, LLC WattBox 8202.10.0.0 or later

Patches

help.snapone.com/wb-8x0-fw/Content/FW%20RN/8x0/8x0%20series%20FW%20RN.htm

Affected products

Product	Affected versions	Fixed in
Snap One, LLC WattBox 800	v < 2.10.0.0	2.10.0.0
Snap One, LLC WattBox 820	v < 2.10.0.0	2.10.0.0

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