CVE-2026-0420

MEDIUMNVD 5.95.9—
EchelonGraph scoreHIGH confidence

Score 5.9 from GitHub Security Advisory published 2026-06-09. NVD baseline CVSS 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.9Exploit: NoneExposed: 0

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

An improper implementation of TLS certificate validation vulnerability found in NETGEAR's ReadyCloud client app which could allow an attacker to perform attacker-in-the-middle (MiTM) style attacks impacting the product's confidentiality. This vulnerability affects the listed NETGEAR models.

CVSS v3
5.9
EG Score
5.9(high)
EPSS
3.3%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 18, 2026

Advisory Details (5)

Auto-updated Jun 14, 2026
No patch confirmed yet.
generic
https://www.netgear.com/support/product/rax40/
generic
https://www.netgear.com/support/product/rax38/
generic
https://www.netgear.com/support/product/rax35/
generic
https://www.netgear.com/support/product/rax120v2/
generic

June 2026 NETGEAR Security Advisory - NETGEAR Support

https://kb.netgear.com/000070811/June-2026-NETGEAR-Security-Advisory

Vendor Advisories for CVE-2026-0420(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 88× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 15:21 UTCEG score recompute
  4. 2026-07-05 15:21 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-05 02:30 UTCEPSS rescore
  7. 2026-07-04 15:31 UTCEG score recompute
  8. 2026-07-04 15:31 UTCGHSA enrichment
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-03 15:50 UTCEG score recompute
  11. 2026-07-03 15:50 UTCGHSA enrichment
  12. 2026-07-02 14:40 UTCEG score recompute
  13. 2026-07-02 14:40 UTCGHSA enrichment
  14. 2026-07-01 15:07 UTCEG score recompute
  15. 2026-07-01 15:07 UTCGHSA enrichment
  16. 2026-07-01 15:06 UTCEPSS rescore
  17. 2026-07-01 15:06 UTCEPSS rescore
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 15:33 UTCEG score recompute
  20. 2026-06-30 15:32 UTCGHSA enrichment
  21. 2026-06-29 14:06 UTCEPSS rescore
  22. 2026-06-29 11:19 UTCEG score recompute
  23. 2026-06-29 11:19 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 11:46 UTCEG score recompute
Show 63 more
  1. 2026-06-28 11:46 UTCGHSA enrichment
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 12:13 UTCEG score recompute
  5. 2026-06-27 12:13 UTCGHSA enrichment
  6. 2026-06-27 03:08 UTCEPSS rescore
  7. 2026-06-26 12:38 UTCEG score recompute
  8. 2026-06-26 12:38 UTCGHSA enrichment
  9. 2026-06-25 13:49 UTCEPSS rescore
  10. 2026-06-25 11:37 UTCEG score recompute
  11. 2026-06-25 11:37 UTCGHSA enrichment
  12. 2026-06-24 14:05 UTCEPSS rescore
  13. 2026-06-24 11:56 UTCEG score recompute
  14. 2026-06-24 11:56 UTCGHSA enrichment
  15. 2026-06-23 21:32 UTCEPSS rescore
  16. 2026-06-23 11:35 UTCEG score recompute
  17. 2026-06-23 11:35 UTCGHSA enrichment
  18. 2026-06-22 14:25 UTCEPSS rescore
  19. 2026-06-22 14:25 UTCEPSS rescore
  20. 2026-06-22 11:43 UTCEG score recompute
  21. 2026-06-22 11:42 UTCGHSA enrichment
  22. 2026-06-21 14:56 UTCEPSS rescore
  23. 2026-06-21 14:56 UTCEPSS rescore
  24. 2026-06-21 11:51 UTCEG score recompute
  25. 2026-06-21 11:51 UTCGHSA enrichment
  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-20 11:45 UTCEG score recompute
  29. 2026-06-20 11:45 UTCGHSA enrichment
  30. 2026-06-19 19:25 UTCEPSS rescore
  31. 2026-06-19 12:13 UTCEG score recompute▲ 1.30
  32. 2026-06-19 12:13 UTCGHSA enrichment
  33. 2026-06-18 17:52 UTCEPSS rescore
  34. 2026-06-18 17:22 UTCNVD updateCVSS v3 → 5.9
  35. 2026-06-18 12:39 UTCEG score recompute
  36. 2026-06-18 12:38 UTCGHSA enrichment
  37. 2026-06-17 17:53 UTCEPSS rescore
  38. 2026-06-17 12:57 UTCEG score recompute
  39. 2026-06-17 12:56 UTCGHSA enrichment
  40. 2026-06-16 17:52 UTCEPSS rescore
  41. 2026-06-16 13:23 UTCEG score recompute
  42. 2026-06-16 13:23 UTCGHSA enrichment
  43. 2026-06-15 17:48 UTCEPSS rescore
  44. 2026-06-15 13:47 UTCEG score recompute
  45. 2026-06-15 13:47 UTCGHSA enrichment
  46. 2026-06-14 23:18 UTCEPSS rescore
  47. 2026-06-14 14:15 UTCEG score recompute
  48. 2026-06-14 14:14 UTCGHSA enrichment
  49. 2026-06-13 23:00 UTCEPSS rescore
  50. 2026-06-13 23:00 UTCEPSS rescore
  51. 2026-06-13 14:41 UTCEG score recompute
  52. 2026-06-13 14:41 UTCGHSA enrichment
  53. 2026-06-12 23:12 UTCEPSS rescore
  54. 2026-06-12 15:08 UTCEG score recompute
  55. 2026-06-12 15:08 UTCGHSA enrichment
  56. 2026-06-11 15:36 UTCEG score recompute
  57. 2026-06-11 15:35 UTCGHSA enrichment
  58. 2026-06-11 14:00 UTCEPSS rescore
  59. 2026-06-10 22:18 UTCEPSS rescore
  60. 2026-06-10 15:55 UTCEG score recompute
  61. 2026-06-10 15:55 UTCGHSA enrichment
  62. 2026-06-09 16:23 UTCEG score recompute
  63. 2026-06-09 16:22 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-0420?
CVE-2026-0420 is a medium vulnerability published on June 9, 2026. An improper implementation of TLS certificate validation vulnerability found in NETGEAR's ReadyCloud client app which could allow an attacker to perform attacker-in-the-middle (MiTM) style attacks impacting the product's confidentiality. This vulnerability affects the listed NETGEAR models.
When was CVE-2026-0420 disclosed?
CVE-2026-0420 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-0420 actively exploited?
CVE-2026-0420 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-0420?
CVE-2026-0420 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-0420?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0420, 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

Explore the affected products and dependency analysis for CVE-2026-0420

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