How severe is CVE-2021-4474?

CVE-2021-4474 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-4474 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2021-4474?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2021-4474 have an EU (EUVD) identifier?

Yes. CVE-2021-4474 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34771.

When was CVE-2021-4474 published?

CVE-2021-4474 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2021-4474

CVE-2021-4474 is a medium-severity vulnerability with a CVSS 3.x base score of 4.9. 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-552.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v4: 6.9
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-34771
Weakness: CWE-552
Published: 2026-03-26
Last modified: 2026-06-17

Description

Ruckus Access Point products contain an arbitrary file read vulnerability in the command-line interface that allows authenticated remote attackers with administrative privileges to read arbitrary files from the underlying filesystem. Attackers can exploit this vulnerability to access sensitive information including configuration files, credentials, and system data stored on the device.

Frequently asked questions

What is CVE-2021-4474?: Ruckus Access Point products contain an arbitrary file read vulnerability in the command-line interface that allows authenticated remote attackers with administrative privileges to read arbitrary files from the underlying filesystem. Attackers can exploit this vulnerability to access sensitive information including configuration files, credentials, and system data stored on the device.
How severe is CVE-2021-4474?: CVE-2021-4474 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-4474 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-4474?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-4474 have an EU (EUVD) identifier?: Yes. CVE-2021-4474 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34771.
When was CVE-2021-4474 published?: CVE-2021-4474 was published on 2026-03-26 and last updated on 2026-06-17.

References

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