CVE-2026-0420

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM 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
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 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(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 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 12× in last 7d / 70× 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.

Showing the most recent 100 of 162 total refreshes for this CVE.

  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-25 00:50 UTCEG score recompute
  3. 2026-08-25 00:50 UTCGHSA enrichment
  4. 2026-08-23 11:14 UTCEG score recompute
  5. 2026-08-23 11:14 UTCGHSA enrichment
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-21 23:48 UTCEPSS rescore
  8. 2026-08-21 10:13 UTCEG score recompute
  9. 2026-08-21 10:13 UTCGHSA enrichment
  10. 2026-08-20 22:55 UTCEPSS rescore
  11. 2026-08-20 09:19 UTCEG score recompute
  12. 2026-08-20 09:19 UTCGHSA enrichment
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-17 00:46 UTCEG score recompute
  15. 2026-08-17 00:46 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 02:14 UTCEPSS rescore
  18. 2026-08-16 00:36 UTCEG score recompute
  19. 2026-08-16 00:36 UTCGHSA enrichment
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 21:54 UTCGHSA enrichment
  22. 2026-08-13 22:21 UTCEG score recompute
  23. 2026-08-13 22:21 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-12 19:49 UTCEG score recompute
Show 75 more
  1. 2026-08-12 19:49 UTCGHSA enrichment
  2. 2026-08-12 13:50 UTCEPSS rescore
  3. 2026-08-11 20:17 UTCEG score recompute
  4. 2026-08-11 20:16 UTCGHSA enrichment
  5. 2026-08-10 23:59 UTCEPSS rescore
  6. 2026-08-10 20:44 UTCGHSA enrichment
  7. 2026-08-09 18:22 UTCEG score recompute
  8. 2026-08-09 18:22 UTCGHSA enrichment
  9. 2026-08-09 13:46 UTCEPSS rescore
  10. 2026-08-08 18:49 UTCEG score recompute
  11. 2026-08-08 18:49 UTCGHSA enrichment
  12. 2026-08-08 16:37 UTCEPSS rescore
  13. 2026-08-07 19:16 UTCEG score recompute
  14. 2026-08-07 19:16 UTCGHSA enrichment
  15. 2026-08-06 19:44 UTCEG score recompute
  16. 2026-08-06 19:44 UTCGHSA enrichment
  17. 2026-08-06 13:46 UTCEPSS rescore
  18. 2026-08-05 20:11 UTCEG score recompute
  19. 2026-08-05 20:11 UTCGHSA enrichment
  20. 2026-08-05 19:17 UTCEPSS rescore
  21. 2026-08-04 16:11 UTCEG score recompute
  22. 2026-08-04 16:11 UTCGHSA enrichment
  23. 2026-08-04 15:09 UTCEPSS rescore
  24. 2026-08-04 10:38 UTCEPSS rescore
  25. 2026-08-03 15:02 UTCEG score recompute
  26. 2026-08-03 15:02 UTCGHSA enrichment
  27. 2026-08-03 10:35 UTCEPSS rescore
  28. 2026-08-02 09:55 UTCEG score recompute
  29. 2026-08-02 09:55 UTCGHSA enrichment
  30. 2026-08-02 02:26 UTCEPSS rescore
  31. 2026-08-01 10:22 UTCEG score recompute
  32. 2026-08-01 10:22 UTCGHSA enrichment
  33. 2026-08-01 04:15 UTCEPSS rescore
  34. 2026-07-31 10:11 UTCEG score recompute
  35. 2026-07-31 10:11 UTCGHSA enrichment
  36. 2026-07-30 16:27 UTCEPSS rescore
  37. 2026-07-30 10:28 UTCEG score recompute
  38. 2026-07-30 10:28 UTCGHSA enrichment
  39. 2026-07-30 01:30 UTCEPSS rescore
  40. 2026-07-29 09:10 UTCGHSA enrichment
  41. 2026-07-28 08:03 UTCEG score recompute
  42. 2026-07-28 08:03 UTCGHSA enrichment
  43. 2026-07-27 14:13 UTCEPSS rescore
  44. 2026-07-27 08:23 UTCEG score recompute
  45. 2026-07-27 08:23 UTCGHSA enrichment
  46. 2026-07-26 14:54 UTCEPSS rescore
  47. 2026-07-26 14:54 UTCEPSS rescore
  48. 2026-07-26 06:49 UTCEG score recompute
  49. 2026-07-26 06:49 UTCGHSA enrichment
  50. 2026-07-24 14:17 UTCEPSS rescore
  51. 2026-07-23 14:18 UTCEPSS rescore
  52. 2026-07-23 03:04 UTCEG score recompute
  53. 2026-07-22 14:08 UTCEPSS rescore
  54. 2026-07-21 15:24 UTCEPSS rescore
  55. 2026-07-20 17:08 UTCEPSS rescore
  56. 2026-07-19 14:30 UTCEPSS rescore
  57. 2026-07-18 10:04 UTCEPSS rescore
  58. 2026-07-16 17:02 UTCEPSS rescore
  59. 2026-07-15 20:11 UTCGHSA enrichment
  60. 2026-07-15 16:57 UTCEPSS rescore
  61. 2026-07-15 02:00 UTCEPSS rescore
  62. 2026-07-14 02:20 UTCGHSA enrichment
  63. 2026-07-13 22:30 UTCEPSS rescore
  64. 2026-07-13 06:12 UTCEPSS rescore
  65. 2026-07-12 05:46 UTCEPSS rescore
  66. 2026-07-11 20:29 UTCGHSA enrichment
  67. 2026-07-11 08:27 UTCEPSS rescore
  68. 2026-07-10 20:55 UTCGHSA enrichment
  69. 2026-07-09 19:10 UTCEPSS rescore
  70. 2026-07-09 02:52 UTCGHSA enrichment
  71. 2026-07-08 15:15 UTCEPSS rescore
  72. 2026-07-08 15:15 UTCEPSS rescore
  73. 2026-07-08 01:39 UTCGHSA enrichment
  74. 2026-07-07 13:46 UTCEPSS rescore
  75. 2026-07-06 16:27 UTCEPSS rescore

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 July 23, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 96.8% of all scored CVEs.
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

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