How severe is CVE-2021-33217?

CVE-2021-33217 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-33217 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33217?

CVE-2021-33217 affects Commscope Ruckus Iot Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33217?

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

When was CVE-2021-33217 published?

CVE-2021-33217 was published on 2021-07-07 and last updated on 2026-06-17.

CVE-2021-33217

CVE-2021-33217 is a high-severity vulnerability in Commscope Ruckus Iot Controller with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
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. The Web Application allows Arbitrary Read/Write actions by authenticated users. The API allows an HTTP POST of arbitrary content into any file on the filesystem as root.

Frequently asked questions

What is CVE-2021-33217?: An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. The Web Application allows Arbitrary Read/Write actions by authenticated users. The API allows an HTTP POST of arbitrary content into any file on the filesystem as root.
How severe is CVE-2021-33217?: CVE-2021-33217 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-33217 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33217?: CVE-2021-33217 affects Commscope Ruckus Iot Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33217?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-33217 published?: CVE-2021-33217 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-2021-33216 — Critical (CVSS 9.8): An issue was discovered in CommScope Ruckus IoT Controller 1.7.1.0 and earlier. An Undocumented Backdoor exists,…
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 →

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