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Vulnerability record · CVE-2021-33216 · published 7 July 2021

CVE-2021-33216: Commscope ruckus iot controller vulnerability

CCommscope · Ruckus Iot Controller

An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. An Undocumented Backdoor exists, allowing shell access via a developer account.

9.8 CVSS 3.1 Critical EPSS 14% · top 3.6%
9.8CVSS 3.1 base score, v2 7.5
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. An Undocumented Backdoor exists, allowing shell access via a developer account.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://seclists.org/fulldisclosure/2021/May/78 Mailing ListThird Party Advisory
https://korelogic.com/advisories.html Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/78 Mailing ListThird Party Advisory
https://korelogic.com/advisories.html Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-33218Commscope ruckus iot controller hard-coded credentials vulnerabilityAn issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. There are Hard-coded System Passwords that provide shell access.EPSS 2.3%9.8CVE-2021-33219Commscope ruckus iot controller hard-coded credentials vulnerabilityAn issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. There are Hard-coded Web Application Administrator Passwords for the …EPSS 2.2%9.8CVE-2021-33221CommScope Ruckus IoT Controller exposes unauthenticated API endpointsCommScope Ruckus IoT Controller 1.7.1.0 and earlier ships API endpoints that lack authentication, mapped to CWE-306 (missing authentication for a cri…EPSS 56%analysed8.8CVE-2021-33217Commscope ruckus iot controller out-of-bounds write vulnerabilityAn issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. The Web Application allows Arbitrary Read/Write actions by authentica…EPSS 1.4%7.8CVE-2021-33220Commscope ruckus iot controller hard-coded credentials vulnerabilityAn issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. Hard-coded API Keys exist.EPSS 0.25%4.3CVE-2021-33215Commscope ruckus iot controller path traversal vulnerabilityAn issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. The API allows Directory Traversal.EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2021-33216), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.