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CVE-2020-22653

29
FAUCET Score

CVE-2020-22653 describes a critical vulnerability in various Ruckus R, T, SmartCell Gateway, SmartZone, Virtual SmartZone, and ZoneDirector products. Attackers can exploit a flaw in the official image signature verification process to inject unauthorized firmware images. With a CVSS score of 9.8 (CRITICAL), this vulnerability allows for unauthenticated remote exploitation (AV:N, AC:L, PR:N, UI:N) leading to complete compromise of confidentiality, integrity, and availability (C:H, I:H, A:H). There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB: None), and it is not listed on CISA's KEV catalog, indicating no active exploitation. Community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
10.5.1.0.199CPE matchmatch criteria
cpe:2.3:o:ruckuswireless:r310_firmware:10.5.1.0.199:*:*:*:*:*:*:*
10.5.1.0.199CPE matchmatch criteria
cpe:2.3:o:ruckuswireless:r500_firmware:10.5.1.0.199:*:*:*:*:*:*:*
10.5.1.0.199CPE matchmatch criteria
cpe:2.3:o:ruckuswireless:r600_firmware:10.5.1.0.199:*:*:*:*:*:*:*
10.5.1.0.199CPE matchmatch criteria
cpe:2.3:o:ruckuswireless:t300_firmware:10.5.1.0.199:*:*:*:*:*:*:*
10.5.1.0.199CPE matchmatch criteria
cpe:2.3:o:ruckuswireless:t301n_firmware:10.5.1.0.199:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 15th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

hdhrmi.blogspot.com / 2020/03/multiple-vulnerabilities-in-ruckus.html
support.ruckuswireless.com / security_bulletins/302
PatchVendor Advisory