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CVE-2020-22656

23
FAUCET Score

CVE-2020-22656 is a vulnerability affecting various Ruckus wireless access points and controllers, including specific R310, R500, R600, T300 series, SmartCell Gateway, SmartZone, Virtual SmartZone, and ZoneDirector models. This flaw allows an unauthenticated attacker to force the Secure Boot into a failed state, potentially disrupting device operation. With a CVSS score of 7.5 (High), it presents a low-complexity network attack that can lead to a high impact on integrity (I:H), though confidentiality and availability are not directly affected. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

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

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.49%
Probability of exploitation in next 30 days
EPSS Percentile
39.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0049 is in the 17th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

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