Vulnerability in Snap One, Llc Wattbox 800
CVE-2026-41446
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.008 · change: +0.003
Affected products
- Snap One, Llc Wattbox 800 — versions 0
- Snap One, Llc Wattbox 820 — versions 0
Weakness classification (CWE)
References
- help.snapone.com/wb-8x0-fw/Content/FW RN/8x0/8x0 series FW RN.htm (release-notes, patch)
Frequently asked questions
- What is CVE-2026-41446?
- CVE-2026-41446 is a critical-severity vulnerability in Snap One, Llc Wattbox 800, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-04-28.
- How severe is CVE-2026-41446?
- Critical severity. CVSS v3 base score is 9.8 out of 10.