How severe is CVE-2021-33216?

CVE-2021-33216 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-33216 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33216?

CVE-2021-33216 affects Commscope Ruckus Iot Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33216?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-33216 published?

CVE-2021-33216 was published on 2021-07-07 and last updated on 2026-06-17.

CVE-2021-33216

CVE-2021-33216 is a critical-severity vulnerability in Commscope Ruckus Iot Controller with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Commscope Ruckus Iot Controller
Published: 2021-07-07
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-33216?: 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.
How severe is CVE-2021-33216?: CVE-2021-33216 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-33216 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33216?: CVE-2021-33216 affects Commscope Ruckus Iot Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33216?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-33216 published?: CVE-2021-33216 was published on 2021-07-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:commscope:ruckus_iot_controller:*:*:*:*:*:*:*:*

More vulnerabilities in Commscope Ruckus Iot Controller

CVE-2021-33221 — Critical (CVSS 9.8): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. There are Unauthenticated API Endpoints.
CVE-2021-33219 — Critical (CVSS 9.8): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. There are Hard-coded Web Application…
CVE-2021-33218 — Critical (CVSS 9.8): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. There are Hard-coded System Passwords…
CVE-2021-33217 — High (CVSS 8.8): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. The Web Application allows Arbitrary…
CVE-2021-33220 — High (CVSS 7.8): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. Hard-coded API Keys exist.
CVE-2021-33215 — Medium (CVSS 4.3): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. The API allows Directory Traversal.

All CVEs affecting Commscope Ruckus Iot Controller →