CVE-2026-35019

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-23. the CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

NetComm NF20MESH routers running firmware R6B031 and earlier contain an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by exploiting a hardcoded AES-256 key used to encrypt session cookies for the web management interface. Attackers can forge a valid encrypted session cookie using the shared hardcoded key and bypass authentication checks to obtain full administrative control of the management interface while any legitimate administrator session is active.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
55%
KEV
Not listed

Published

June 23, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jun 23, 2026
No patch confirmed yet.
generic

NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-hardcoded-aes-key-authentication-bypass
generic

Home | NetComm Wireless Support

https://support.netcommwireless.com/products/nf20mesh#Firmware
generic

Signal 11 | Cybersecurity without compromise

https://signal11.io/advisories/netcomm-nf20-mesh-authentication-bypass

Vendor Advisories for CVE-2026-35019(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 13× in last 7d / 47× 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 227 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-35019?
CVE-2026-35019 is a high vulnerability published on June 23, 2026. NetComm NF20MESH routers running firmware R6B031 and earlier contain an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by exploiting a hardcoded AES-256 key used to encrypt session cookies for the web management interface. Attackers can forge…
When was CVE-2026-35019 disclosed?
CVE-2026-35019 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35019 actively exploited?
CVE-2026-35019 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.8% of all scored CVEs.
What is the CVSS score of CVE-2026-35019?
CVE-2026-35019 has a CVSS v4.0 base score of 8.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-35019?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35019, 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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