CVE-2021-4474

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2026-03-26. the CNA's CVSS baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
4.9
EG Score
4.9(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

March 26, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

Ruckus AP CLI Arbitrary File Read Allows Authenticated Remote File Access | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ruckus-ap-cli-arbitrary-file-read-allows-authenticated-remote-file-access
generic

20210108 | Security Bulletins | Ruckus Wireless Support

https://support.ruckuswireless.com/security_bulletins/306

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:24 UTCEPSS rescore
  2. 2026-09-17 19:23 UTCEPSS rescore
  3. 2026-09-16 14:05 UTCEPSS rescore
  4. 2026-09-16 14:05 UTCEPSS rescore
  5. 2026-09-15 03:06 UTCEPSS rescore
  6. 2026-09-12 14:57 UTCEPSS rescore
  7. 2026-09-11 14:49 UTCEPSS rescore
  8. 2026-09-11 09:33 UTCEPSS rescore
  9. 2026-09-08 21:57 UTCEPSS rescore
  10. 2026-09-07 15:58 UTCEPSS rescore
  11. 2026-09-06 13:45 UTCEPSS rescore
  12. 2026-09-05 15:25 UTCEPSS rescore
  13. 2026-09-04 13:57 UTCEPSS rescore
  14. 2026-09-04 05:03 UTCEPSS rescore
  15. 2026-09-02 14:09 UTCEPSS rescore
  16. 2026-09-01 13:51 UTCEPSS rescore
  17. 2026-08-30 19:14 UTCEPSS rescore
  18. 2026-08-30 01:19 UTCEPSS rescore
  19. 2026-08-28 21:38 UTCEPSS rescore
  20. 2026-08-27 14:22 UTCEPSS rescore
  21. 2026-08-26 14:43 UTCEPSS rescore
  22. 2026-08-25 13:46 UTCEPSS rescore
  23. 2026-08-24 14:13 UTCEPSS rescore
  24. 2026-08-21 23:46 UTCEPSS rescore
  25. 2026-08-20 22:52 UTCEPSS rescore
Show 63 more
  1. 2026-08-19 17:01 UTCEPSS rescore
  2. 2026-08-18 13:45 UTCEPSS rescore
  3. 2026-08-17 13:44 UTCEPSS rescore
  4. 2026-08-16 14:53 UTCEPSS rescore
  5. 2026-08-16 10:06 UTCEG score recompute
  6. 2026-08-16 10:06 UTCGHSA enrichment
  7. 2026-08-16 02:11 UTCEPSS rescore
  8. 2026-08-15 01:27 UTCEPSS rescore
  9. 2026-08-14 06:24 UTCEG score recompute
  10. 2026-08-14 06:24 UTCGHSA enrichment
  11. 2026-08-13 21:57 UTCEPSS rescore
  12. 2026-08-12 20:41 UTCEG score recompute
  13. 2026-08-12 20:41 UTCGHSA enrichment
  14. 2026-08-12 13:48 UTCEPSS rescore
  15. 2026-08-11 13:38 UTCEPSS rescore
  16. 2026-08-11 09:03 UTCEG score recompute
  17. 2026-08-11 09:03 UTCGHSA enrichment
  18. 2026-08-10 07:30 UTCEG score recompute
  19. 2026-08-10 07:30 UTCGHSA enrichment
  20. 2026-08-09 13:44 UTCEPSS rescore
  21. 2026-08-09 05:57 UTCEG score recompute
  22. 2026-08-09 05:57 UTCGHSA enrichment
  23. 2026-08-08 16:34 UTCEPSS rescore
  24. 2026-08-07 16:24 UTCEPSS rescore
  25. 2026-08-07 16:23 UTCEG score recompute
  26. 2026-08-07 16:23 UTCGHSA enrichment
  27. 2026-08-06 13:44 UTCEPSS rescore
  28. 2026-08-06 00:51 UTCEG score recompute
  29. 2026-08-06 00:51 UTCGHSA enrichment
  30. 2026-08-05 19:15 UTCEPSS rescore
  31. 2026-08-04 15:06 UTCEPSS rescore
  32. 2026-08-04 10:34 UTCEPSS rescore
  33. 2026-08-03 23:16 UTCEG score recompute
  34. 2026-08-03 23:16 UTCGHSA enrichment
  35. 2026-08-03 10:33 UTCEPSS rescore
  36. 2026-08-02 15:21 UTCEG score recompute
  37. 2026-08-02 15:21 UTCGHSA enrichment
  38. 2026-08-02 02:24 UTCEPSS rescore
  39. 2026-08-01 04:13 UTCEPSS rescore
  40. 2026-07-30 16:25 UTCEPSS rescore
  41. 2026-07-30 01:28 UTCEPSS rescore
  42. 2026-07-28 15:33 UTCEPSS rescore
  43. 2026-07-26 14:52 UTCEPSS rescore
  44. 2026-07-25 14:15 UTCEPSS rescore
  45. 2026-07-24 14:15 UTCEPSS rescore
  46. 2026-07-24 14:15 UTCEPSS rescore
  47. 2026-07-23 14:16 UTCEPSS rescore
  48. 2026-07-23 02:05 UTCEG score recompute
  49. 2026-07-22 22:52 UTCEG score recompute
  50. 2026-07-22 14:06 UTCEPSS rescore
  51. 2026-07-21 15:22 UTCEPSS rescore
  52. 2026-07-21 15:22 UTCEPSS rescore
  53. 2026-07-20 17:05 UTCEPSS rescore
  54. 2026-07-19 14:29 UTCEPSS rescore
  55. 2026-07-19 02:27 UTCEPSS rescore
  56. 2026-07-19 02:27 UTCEPSS rescore
  57. 2026-07-18 10:02 UTCEPSS rescore
  58. 2026-07-16 17:00 UTCEPSS rescore
  59. 2026-07-16 17:00 UTCEPSS rescore
  60. 2026-07-15 16:55 UTCEPSS rescore
  61. 2026-07-15 02:07 UTCEG score recompute
  62. 2026-07-15 02:07 UTCGHSA enrichment
  63. 2026-07-15 02:06 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2021-4474?
CVE-2021-4474 is a medium vulnerability published on March 26, 2026. 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…
When was CVE-2021-4474 disclosed?
CVE-2021-4474 was first published in the National Vulnerability Database on March 26, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-4474 actively exploited?
CVE-2021-4474 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.1% of all scored CVEs.
What is the CVSS score of CVE-2021-4474?
CVE-2021-4474 has a CVSS v4.0 base score of 4.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2021-4474?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-4474, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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