How severe is CVE-2020-22654?

CVE-2020-22654 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-22654 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22654?

CVE-2020-22654 primarily affects Ruckuswireless R310 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-22654?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-22654 published?

CVE-2020-22654 was published on 2023-01-20 and last updated on 2026-06-17.

CVE-2020-22654

CVE-2020-22654 is a critical-severity vulnerability in Ruckuswireless R310 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-494.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
Affected product: Ruckuswireless R310 Firmware
Published: 2023-01-20
Last modified: 2026-06-17

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 bypass firmware image bad md5 checksum failed error.

Frequently asked questions

What is CVE-2020-22654?: 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 bypass firmware image bad md5 checksum failed error.
How severe is CVE-2020-22654?: CVE-2020-22654 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-22654 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22654?: CVE-2020-22654 primarily affects Ruckuswireless R310 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-22654?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-22654 published?: CVE-2020-22654 was published on 2023-01-20 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:o:ruckuswireless:r310_firmware:10.5.1.0.199:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:r500_firmware:10.5.1.0.199:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:r600_firmware:10.5.1.0.199:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:t300_firmware:10.5.1.0.199:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:t301n_firmware:10.5.1.0.199:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:t301s_firmware:10.5.1.0.199:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:scg200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:sz-100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:sz-300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:vsz_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:zonedirector_1100_firmware:9.10.2.0.130:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:zonedirector_1200_firmware:10.2.1.0.218:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:zonedirector_3000_firmware:10.2.1.0.218:*:*:*:*:*:*:*
cpe:2.3:o:ruckuswireless:zonedirector_5000_firmware:10.0.1.0.151:*:*:*:*:*:*:*

More vulnerabilities in Ruckuswireless R310 Firmware

CVE-2020-22658 — Critical (CVSS 9.8): 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…
CVE-2020-22653 — Critical (CVSS 9.8): 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…
CVE-2020-22657 — Critical (CVSS 9.1): 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…
CVE-2017-6229 — High (CVSS 8.8): Ruckus Networks Unleashed AP firmware releases before 200.6.10.1.x and Ruckus Networks Zone Director firmware releases…
CVE-2020-22662 — High (CVSS 7.5): 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…
CVE-2020-22660 — High (CVSS 7.5): 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…

All CVEs affecting Ruckuswireless R310 Firmware →

Other CWE-494 vulnerabilities

CVE-2020-1595 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from…
CVE-2020-1210 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source…
CVE-2026-42248 — Critical (CVSS 9.8): Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike…
CVE-2026-34841 — Critical (CVSS 9.8): Bruno is an open source IDE for exploring and testing APIs. Prior to 3.2.1, Bruno was affected by a supply chain attack…
CVE-2026-3000 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…
CVE-2026-2999 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…

Browse all CWE-494 vulnerabilities →