What is CVE-2019-20481?

CVE-2019-20481 is a critical-severity vulnerability in Miele Xgw 3000 Zigbee Gateway, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-02-24.

How severe is CVE-2019-20481?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Miele Xgw 3000 Zigbee Gateway

CVE-2019-20481

In MIELE XGW 3000 ZigBee Gateway before 2.4.0, the Password Change Function does not require knowledge of the old password. This can be exploited in conjunction with CVE-2019-20480.

Vulnerability class: Broken Authentication

Published 2020-02-24 · last modified 2026-06-17.

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: 0.006 (46.3th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cert.vde.com/en-us/advisories/vde-2019-010 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-20481?: CVE-2019-20481 is a critical-severity vulnerability in Miele Xgw 3000 Zigbee Gateway, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-02-24.
How severe is CVE-2019-20481?: Critical severity. CVSS v3 base score is 9.8 out of 10.