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R310 FirmwareOperating system · Ruckuswireless

CVE-2020-22656

HIGH · 7.5 CVSS v3.1 Published 2023-01-20
Fix available
A fix is available. Upgrade to 3.6.2.0.795 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In Ruckus R310 10.5.1.0.199, Ruckus R500 10.5.1.0.199, Ruckus R600 10.5.1.0.199, Ruckus T300 10.5.1.0.199, Ruckus T301n 10.5.1.0.199, Ruckus T301s 10.5.1.0.199, SmartCell Gateway 200 (SCG200) before 3.6.2.0.795, SmartZone 100 (SZ-100) before 3.6.2.0.795, SmartZone 300 (SZ300) before 3.6.2.0.795, Virtual SmartZone (vSZ) before 3.6.2.0.795, ZoneDirector 1100 9.10.2.0.130, ZoneDirector 1200 10.2.1.0.218, ZoneDirector 3000 10.2.1.0.218, ZoneDirector 5000 10.0.1.0.151, a vulnerability allows attackers to make the Secure Boot in failed attempts state (rfwd).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
R310 FirmwareOperating system
Affected:= 10.5.1.0.199
R500 FirmwareOperating system
Affected:= 10.5.1.0.199
R600 FirmwareOperating system
Affected:= 10.5.1.0.199
T300 FirmwareOperating system
Affected:= 10.5.1.0.199
T301n FirmwareOperating system
Affected:= 10.5.1.0.199
T301s FirmwareOperating system
Affected:= 10.5.1.0.199
Scg200 FirmwareOperating system
Affected:< 3.6.2.0.795
Sz 100 FirmwareOperating system
Affected:< 3.6.2.0.795

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 3.6.2.0.795 or later
Fixed in 3.6.2.0.795
Vendor patch support.ruckuswireless.com →
Recommended fix High confidence

For SCG200/SZ-100/SZ300/vSZ: upgrade to firmware 3.6.2.0.795 or later. For R310/R500/R600/T300/T301n/T301s: upgrade to any version newer than 10.5.1.0.199. For ZoneDirector models: upgrade to respective fixed versions as listed in the security bulletin.

  1. 1. Identify the specific Ruckus device model (R310, R500, R600, T300, T301n, T301s, SCG200, SZ-100, or ZoneDirector variant) from the affected product list.
  2. 2. Access the device web interface or CLI using administrative credentials.
  3. 3. Navigate to the firmware upgrade section (typically under Administration > Firmware Upgrade or System > Maintenance).
  4. 4. Download the appropriate fixed firmware from the official Ruckus support portal: https://support.ruckuswireless.com/
  5. 5. For SCG200, SZ-100, SZ300, and vSZ devices: Upgrade to firmware version 3.6.2.0.795 or later.
  6. 6. For R310, R500, R600, T300, T301n, T301s: Upgrade to any firmware version newer than 10.5.1.0.199 that includes the security fix.
  7. 7. For ZoneDirector devices: Upgrade to the fixed versions mentioned in the security bulletin (ZD1100: 9.10.2.0.130 or later, ZD1200/ZD3000: 10.2.1.0.218 or later, ZD5000: 10.0.1.0.151 or later).
  8. 8. Verify the upgrade completed successfully and confirm Secure Boot is functioning properly.
Caveat Review release notes for potential configuration or compatibility changes when upgrading firmware versions, especially across major version jumps.

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-22656 in production — separate from our analysis above.

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  • Version or environment caveats, and links to real fixes
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