What is CVE-2020-28998?

CVE-2020-28998 is a critical-severity vulnerability in Mygeeni Gnc-Cw013, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-01-26.

How severe is CVE-2020-28998?

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

Vulnerability in Mygeeni Gnc-Cw013

CVE-2020-28998

An issue was discovered on Geeni GNC-CW013 doorbell 1.8.1 devices. A vulnerability exists in the Telnet service that allows a remote attacker to take full control of the device with a high-privileged account. The vulnerability exists because a system account has a default and static password.

Published 2021-01-26 · 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: 0.028 (86.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Mygeeni Gnc-Cw013
Mygeeni Gnc-Cw013 Firmware — versions 1.8.1

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

support.mygeeni.com/hc/en-us (Product)
gist.github.com/tj-oconnor/e21adcf9c0539a12ad2841102928cbd5 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-28998?: CVE-2020-28998 is a critical-severity vulnerability in Mygeeni Gnc-Cw013, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-01-26.
How severe is CVE-2020-28998?: Critical severity. CVSS v3 base score is 9.8 out of 10.