What’s Vulnerable › Vulnerabilities

CVE-2020-22662

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-01-20 · updated 2026-06-17
• Weakness: CWE-77

Description

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 change and set unauthorized "illegal region code" by remote code Execution command injection which leads to run illegal frequency with maxi output power. Vulnerability allows attacker to create an arbitrary amount of ssid wlans interface per radio which creates overhead over noise (the default max limit is 8 ssid only per radio in solo AP). Vulnerability allows attacker to unlock hidden regions by privilege command injection in WEB GUI.

Affected products

• Ruckuswireless R310 Firmware: 10.5.1.0.199
• Ruckuswireless R500 Firmware: 10.5.1.0.199
• Ruckuswireless R600 Firmware: 10.5.1.0.199
• Ruckuswireless Scg200 Firmware: before 3.6.2.0.795 — fixed in 3.6.2.0.795
• Ruckuswireless Sz-100 Firmware: before 3.6.2.0.795 — fixed in 3.6.2.0.795
• Ruckuswireless Sz-300 Firmware: before 3.6.2.0.795 — fixed in 3.6.2.0.795
• Ruckuswireless T300 Firmware: 10.5.1.0.199
• Ruckuswireless T301N Firmware: 10.5.1.0.199
• Ruckuswireless T301S Firmware: 10.5.1.0.199
• Ruckuswireless Vsz Firmware: before 3.6.2.0.795 — fixed in 3.6.2.0.795
• Ruckuswireless Zonedirector 1100 Firmware: 9.10.2.0.130
• Ruckuswireless Zonedirector 1200 Firmware: 10.2.1.0.218
• Ruckuswireless Zonedirector 3000 Firmware: 10.2.1.0.218
• Ruckuswireless Zonedirector 5000 Firmware: 10.0.1.0.151

How to fix

Upgrade to a fixed version: Ruckuswireless Scg200 Firmware 3.6.2.0.795; Ruckuswireless Sz-100 Firmware 3.6.2.0.795; Ruckuswireless Sz-300 Firmware 3.6.2.0.795; Ruckuswireless Vsz Firmware 3.6.2.0.795. Check the vendor advisory for mitigations.

References

• https://hdhrmi.blogspot.com/2020/03/multiple-vulnerabilities-in-ruckus.html?m=1
• https://support.ruckuswireless.com/security_bulletins/302
• https://support.ruckuswireless.com/security_bulletins/302

Get alerted when CVE-2020-22662 or the next vulnerability affects your stack