Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-33217

25
FAUCET Score

CVE-2021-33217 is a critical vulnerability affecting CommScope Ruckus IoT Controller versions 1.7.1.0 and earlier, allowing authenticated users to perform arbitrary read/write actions. This flaw enables attackers to use an HTTP POST request to write arbitrary content to any file on the filesystem as the root user. With a CVSS score of 8.8 (High), this vulnerability presents a significant risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.7.1.0CPE matchmatch criteria
cpe:2.3:a:commscope:ruckus_iot_controller:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 66th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

nessuspatch availablevia llm_extracted
Fixed in: 1.0
View patch
debianvendor investigatingvia llm_extracted
View patch

Vendor Advisories (2)

debianllm-debian-782452a350927509

Multiple Vulnerabilities in RUCKUS IoT Controller (CVE-2021-33221, CVE- 2021-33220, CVE-2021-33219, CVE-2021-33218, CVE-2021-33217, CVE-2021- 33216, and CVE-2021-33215)

May 25, 2021
nessusllm-nessus-c9eaaa0dc1cac254

Multiple Vulnerabilities in RUCKUS IoT Controller (CVE-2021-33221, CVE- 2021-33220, CVE-2021-33219, CVE-2021-33218, CVE-2021-33217, CVE-2021- 33216, and CVE-2021-33215)

May 25, 2021

References

seclists.org / fulldisclosure/2021/May/77
Mailing ListThird Party Advisory
korelogic.com / advisories.html
Third Party Advisory