What is CVE-2022-35122?

CVE-2022-35122 is a critical-severity vulnerability in Ecowitt Gw1100, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2022-08-17.

How severe is CVE-2022-35122?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Ecowitt Gw1100

CVE-2022-35122

An access control issue in Ecowitt GW1100 Series Weather Stations <=GW1100B_v2.1.5 allows unauthenticated attackers to access sensitive information including device and local WiFi passwords.

Vulnerability class: Broken Authentication

Published 2022-08-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.6th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.pizzapower.me/2022/06/30/the-incredibly-insecure-weather-station/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-35122?: CVE-2022-35122 is a critical-severity vulnerability in Ecowitt Gw1100, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2022-08-17.
How severe is CVE-2022-35122?: Critical severity. CVSS v3 base score is 9.1 out of 10.