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CVE-2020-22657

27
FAUCET Score

CVE-2020-22657 is a critical authentication bypass vulnerability (CWE-287) affecting various Ruckus R, T, SmartCell Gateway, SmartZone, and ZoneDirector products, allowing unauthenticated attackers to bypass WEB GUI login. With a CVSS score of 9.1 (Critical), this network-exploitable vulnerability requires no user interaction and grants high confidentiality and integrity impact. Despite its severity, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB) and minimal community discussion or media coverage, suggesting it is not actively exploited in the wild.

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

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 25th percentile among its peer group of 36,897 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

No media coverage found for this CVE.

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