What’s Vulnerable › Vulnerabilities
CVE-2026-41446: WattBox 800 & 820 Series < 2.10.0.0 RCE via Diagnostic Endpoints
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-28 · updated 2026-07-24
- Weakness: CWE-798
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
- Snap One, LLC WattBox 800: before 2.10.0.0 — fixed in 2.10.0.0
- Snap One, LLC WattBox 820: before 2.10.0.0 — fixed in 2.10.0.0
How to fix
Upgrade to a fixed version: Snap One, LLC WattBox 800 2.10.0.0; Snap One, LLC WattBox 820 2.10.0.0. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-41446 or the next vulnerability affects your stack