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
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 6× in last 7d / 59× 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 213 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 09:37 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 13:47 UTCEPSS rescore
  7. 2026-09-04 05:06 UTCEPSS rescore
  8. 2026-09-02 14:12 UTCEPSS rescore
  9. 2026-09-01 13:53 UTCEPSS rescore
  10. 2026-09-01 04:39 UTCEPSS rescore
  11. 2026-08-30 20:27 UTCEG score recompute
  12. 2026-08-30 20:27 UTCGHSA enrichment
  13. 2026-08-30 19:17 UTCEPSS rescore
  14. 2026-08-30 01:22 UTCEPSS rescore
  15. 2026-08-28 21:41 UTCEPSS rescore
  16. 2026-08-27 14:25 UTCEPSS rescore
  17. 2026-08-26 14:46 UTCEPSS rescore
  18. 2026-08-25 13:49 UTCEPSS rescore
  19. 2026-08-24 22:12 UTCEG score recompute
  20. 2026-08-24 22:12 UTCGHSA enrichment
  21. 2026-08-24 04:58 UTCGHSA enrichment
  22. 2026-08-23 14:57 UTCGHSA enrichment
  23. 2026-08-23 02:41 UTCEG score recompute
  24. 2026-08-23 02:41 UTCGHSA enrichment
  25. 2026-08-23 00:19 UTCEPSS rescore
Show 75 more
  1. 2026-08-22 13:57 UTCEG score recompute
  2. 2026-08-22 13:57 UTCGHSA enrichment
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-21 20:38 UTCGHSA enrichment
  5. 2026-08-21 08:20 UTCEG score recompute
  6. 2026-08-21 08:20 UTCGHSA enrichment
  7. 2026-08-20 22:55 UTCEPSS rescore
  8. 2026-08-20 20:03 UTCGHSA enrichment
  9. 2026-08-20 07:47 UTCEG score recompute
  10. 2026-08-20 07:47 UTCGHSA enrichment
  11. 2026-08-19 17:03 UTCEPSS rescore
  12. 2026-08-19 04:50 UTCEG score recompute
  13. 2026-08-19 04:50 UTCGHSA enrichment
  14. 2026-08-18 13:48 UTCEPSS rescore
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 11:49 UTCGHSA enrichment
  17. 2026-08-16 23:33 UTCEG score recompute
  18. 2026-08-16 23:33 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 11:17 UTCEG score recompute
  21. 2026-08-16 11:17 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 23:01 UTCGHSA enrichment
  24. 2026-08-15 10:44 UTCEG score recompute
  25. 2026-08-15 10:44 UTCGHSA enrichment
  26. 2026-08-15 01:30 UTCEPSS rescore
  27. 2026-08-14 22:28 UTCGHSA enrichment
  28. 2026-08-14 10:12 UTCEG score recompute
  29. 2026-08-14 10:12 UTCGHSA enrichment
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-13 21:55 UTCGHSA enrichment
  32. 2026-08-13 09:39 UTCGHSA enrichment
  33. 2026-08-12 21:23 UTCEG score recompute
  34. 2026-08-12 21:23 UTCGHSA enrichment
  35. 2026-08-12 13:50 UTCEPSS rescore
  36. 2026-08-12 09:06 UTCGHSA enrichment
  37. 2026-08-11 20:50 UTCEG score recompute
  38. 2026-08-11 20:50 UTCGHSA enrichment
  39. 2026-08-11 08:34 UTCEG score recompute
  40. 2026-08-11 08:34 UTCGHSA enrichment
  41. 2026-08-11 00:00 UTCEPSS rescore
  42. 2026-08-10 20:17 UTCGHSA enrichment
  43. 2026-08-10 08:01 UTCGHSA enrichment
  44. 2026-08-09 19:45 UTCEG score recompute
  45. 2026-08-09 19:45 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-09 07:29 UTCGHSA enrichment
  48. 2026-08-08 19:13 UTCEG score recompute
  49. 2026-08-08 19:13 UTCGHSA enrichment
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 06:56 UTCGHSA enrichment
  52. 2026-08-07 18:40 UTCEG score recompute
  53. 2026-08-07 18:40 UTCGHSA enrichment
  54. 2026-08-07 06:15 UTCGHSA enrichment
  55. 2026-08-06 17:59 UTCEG score recompute
  56. 2026-08-06 17:59 UTCGHSA enrichment
  57. 2026-08-06 13:46 UTCEPSS rescore
  58. 2026-08-06 05:43 UTCEG score recompute
  59. 2026-08-06 05:43 UTCGHSA enrichment
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-05 17:27 UTCGHSA enrichment
  62. 2026-08-05 03:34 UTCGHSA enrichment
  63. 2026-08-04 15:15 UTCEG score recompute
  64. 2026-08-04 15:15 UTCGHSA enrichment
  65. 2026-08-04 15:10 UTCEPSS rescore
  66. 2026-08-04 10:38 UTCEPSS rescore
  67. 2026-08-03 21:07 UTCEG score recompute
  68. 2026-08-03 21:07 UTCGHSA enrichment
  69. 2026-08-03 10:36 UTCEPSS rescore
  70. 2026-08-03 08:51 UTCGHSA enrichment
  71. 2026-08-02 20:35 UTCGHSA enrichment
  72. 2026-08-02 08:18 UTCEG score recompute
  73. 2026-08-02 08:18 UTCGHSA enrichment
  74. 2026-08-02 02:27 UTCEPSS rescore
  75. 2026-08-01 20:01 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 45.3% 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

Explore the affected products and dependency analysis for CVE-2026-35019

Explore →

Is Your Infrastructure Affected by CVE-2026-35019?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs