What is CVE-2020-21936?

CVE-2020-21936 is a medium-severity vulnerability in Motorola Cx2, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2021-07-21.

How severe is CVE-2020-21936?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Motorola Cx2

CVE-2020-21936

An issue in HNAP1/GetMultipleHNAPs of Motorola CX2 router CX 1.0.2 Build 20190508 Rel.97360n allows attackers to access the components GetStationSettings, GetWebsiteFilterSettings and GetNetworkSettings without authentication.

Vulnerability class: Broken Authentication

Published 2021-07-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Motorola Cx2
Motorola Cx2 Firmware — versions 1.0.2

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

github.com/cc-crack/router/blob/master/motocx2.md (Exploit, Third Party Advisory)
l0n0l.xyz/post/motocx2/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-21936?: CVE-2020-21936 is a medium-severity vulnerability in Motorola Cx2, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2021-07-21.
How severe is CVE-2020-21936?: Medium severity. CVSS v3 base score is 5.3 out of 10.