Cyber Resilience

CVE-2020-22658

Critical

Published: 20 January 2023

Published
20 January 2023
Modified
03 April 2025
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0019 40.9th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-22658 is a critical-severity Download of Code Without Integrity Check (CWE-494) vulnerability in Ruckuswireless R310 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked at the 40.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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,…

more

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 switch completely to unauthorized image to be Boot as primary verified image.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

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
t300 firmware
10.5.1.0.199
ruckuswireless
t301n firmware
10.5.1.0.199
ruckuswireless
t301s firmware
10.5.1.0.199
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
+4 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-494

Policies can require integrity verification of software prior to installation, reducing risks from unverified downloads.

addresses: CWE-494

Blocks installation of components lacking a valid signature, mitigating download or installation of code without integrity checks.

addresses: CWE-494

Acquisition and maintenance portions of the strategy drive requirements for integrity verification of downloaded or supplied code.

addresses: CWE-494

Mandating integrity control and approved-only changes during development prevents incorporation of code or components lacking integrity validation.

addresses: CWE-494

Supply chain protection requires integrity verification of acquired components, directly reducing insertion or tampering of malicious code during delivery.

addresses: CWE-494

Reduces exposure to code obtained without integrity verification by requiring assurance processes that confirm authenticity and absence of tampering.

addresses: CWE-494

Tamper resistance and detection commonly include integrity verification of code and firmware obtained from external sources.

addresses: CWE-494

Component authenticity requires verifying origin/integrity of acquired firmware or software, directly preventing inclusion of code without integrity checks.

References