CVE-2026-73809

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

A cleartext transmission of sensitive information vulnerability exists in certain Ebyte gateway products. The web management interface does not adequately protect sensitive communications using transport-layer encryption. An attacker with access to network traffic could intercept authentication or session-related information transmitted between a user and the affected device. Successful exploitation could result in disclosure of sensitive information and unauthorized access to device management functionality.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
Patch available. Sources: cisa.
generic

CSAF/csaf_files/OT/white/2026/icsa-26-237-06.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json
cisa Patch Available

Ebyte NE2-D11 | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06

Vendor Advisories for CVE-2026-73809(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 26× in last 7d / 102× 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 102 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-73809?
CVE-2026-73809 is a high vulnerability published on August 27, 2026. A cleartext transmission of sensitive information vulnerability exists in certain Ebyte gateway products. The web management interface does not adequately protect sensitive communications using transport-layer encryption. An attacker with access to network traffic could intercept authentication or…
When was CVE-2026-73809 disclosed?
CVE-2026-73809 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73809 actively exploited?
CVE-2026-73809 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 93.6% of all scored CVEs.
What is the CVSS score of CVE-2026-73809?
CVE-2026-73809 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-73809?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73809, 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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