CVE-2026-35019

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-23. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 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(high)
EPSS
34.7%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 23, 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 36× in last 7d / 72× 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 22:19 UTCEG score recompute
  2. 2026-07-06 22:19 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 09:50 UTCEG score recompute
  6. 2026-07-06 09:50 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 21:30 UTCEG score recompute
  10. 2026-07-05 21:30 UTCGHSA enrichment
  11. 2026-07-05 09:14 UTCEG score recompute
  12. 2026-07-05 09:14 UTCGHSA enrichment
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-04 20:47 UTCEG score recompute
  15. 2026-07-04 20:47 UTCGHSA enrichment
  16. 2026-07-04 08:31 UTCEG score recompute
  17. 2026-07-04 08:31 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-03 20:14 UTCEG score recompute
  20. 2026-07-03 20:14 UTCGHSA enrichment
  21. 2026-07-03 07:58 UTCEG score recompute
  22. 2026-07-03 07:58 UTCGHSA enrichment
  23. 2026-07-02 19:40 UTCEG score recompute
  24. 2026-07-02 19:40 UTCGHSA enrichment
  25. 2026-07-02 07:24 UTCEG score recompute
Show 47 more
  1. 2026-07-02 07:24 UTCGHSA enrichment
  2. 2026-07-01 19:08 UTCEG score recompute
  3. 2026-07-01 19:08 UTCGHSA enrichment
  4. 2026-07-01 15:06 UTCEPSS rescore
  5. 2026-07-01 06:52 UTCEG score recompute
  6. 2026-07-01 06:52 UTCGHSA enrichment
  7. 2026-06-30 23:22 UTCEPSS rescore
  8. 2026-06-30 18:35 UTCEG score recompute
  9. 2026-06-30 18:35 UTCGHSA enrichment
  10. 2026-06-30 06:17 UTCEG score recompute
  11. 2026-06-30 06:17 UTCGHSA enrichment
  12. 2026-06-29 18:00 UTCEG score recompute
  13. 2026-06-29 18:00 UTCGHSA enrichment
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-29 05:44 UTCEG score recompute
  17. 2026-06-29 05:43 UTCGHSA enrichment
  18. 2026-06-28 17:26 UTCEG score recompute
  19. 2026-06-28 17:26 UTCGHSA enrichment
  20. 2026-06-28 14:07 UTCEPSS rescore
  21. 2026-06-28 14:07 UTCEPSS rescore
  22. 2026-06-28 05:09 UTCEG score recompute
  23. 2026-06-28 05:09 UTCGHSA enrichment
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-27 16:53 UTCEG score recompute
  27. 2026-06-27 16:53 UTCGHSA enrichment
  28. 2026-06-27 04:35 UTCEG score recompute
  29. 2026-06-27 04:35 UTCGHSA enrichment
  30. 2026-06-27 03:08 UTCEPSS rescore
  31. 2026-06-26 16:17 UTCEG score recompute
  32. 2026-06-26 16:17 UTCGHSA enrichment
  33. 2026-06-26 04:01 UTCEG score recompute
  34. 2026-06-26 04:01 UTCGHSA enrichment
  35. 2026-06-25 15:45 UTCEG score recompute
  36. 2026-06-25 15:45 UTCGHSA enrichment
  37. 2026-06-25 13:49 UTCEPSS rescore
  38. 2026-06-25 13:49 UTCEPSS rescore
  39. 2026-06-25 03:28 UTCEG score recompute
  40. 2026-06-25 03:28 UTCGHSA enrichment
  41. 2026-06-24 15:11 UTCEG score recompute
  42. 2026-06-24 15:11 UTCGHSA enrichment
  43. 2026-06-24 14:05 UTCEPSS rescore
  44. 2026-06-24 02:55 UTCEG score recompute
  45. 2026-06-24 02:55 UTCGHSA enrichment
  46. 2026-06-23 14:36 UTCEG score recompute
  47. 2026-06-23 14:35 UTCMITRE cvelistV5first tracked

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. 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 34.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-35019?
CVE-2026-35019 has a CVSS v3 base score of 8.1 (NVD).
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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