Vulnerability · Published Apr 28, 2026 · Assigned by VulnCheck
CVE-2026-41446WattBox 800 & 820 Series < 2.10.0.0 RCE via Diagnostic Endpoints
Critical 9.8
In plain English
A critical-severity hard-coded credentials in WattBox 800 from Snap One, LLC. 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 38% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Snap One, LLC | WattBox 800 | 0 – before 2.10.0.0 |
| Snap One, LLC | WattBox 820 | 0 – before 2.10.0.0 |
Weakness: CWE-912, CWE-798 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://help.snapone.com/wb-8x0-fw/Content/FW%20RN/8x0/8x0%20series%20FW%20RN.htm release-notes, patch