CVE-2026-76940

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.

The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This could allow an attacker to perform automated authentication attacks against deployments that rely on password based authentication.

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
29%
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-2026-76940(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 25× in last 7d / 97× 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. 2026-09-19 13:09 UTCGHSA enrichment
  2. 2026-09-19 01:09 UTCEG score recompute
  3. 2026-09-19 01:08 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 13:08 UTCGHSA enrichment
  6. 2026-09-18 01:07 UTCEG score recompute
  7. 2026-09-18 01:07 UTCGHSA enrichment
  8. 2026-09-17 13:07 UTCGHSA enrichment
  9. 2026-09-17 01:06 UTCEG score recompute
  10. 2026-09-17 01:06 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 13:05 UTCEG score recompute
  13. 2026-09-16 13:05 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-16 01:04 UTCGHSA enrichment
  16. 2026-09-15 13:03 UTCEG score recompute
  17. 2026-09-15 13:03 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 01:02 UTCGHSA enrichment
  20. 2026-09-14 13:01 UTCGHSA enrichment
  21. 2026-09-14 00:59 UTCEG score recompute
  22. 2026-09-14 00:59 UTCGHSA enrichment
  23. 2026-09-13 12:58 UTCGHSA enrichment
  24. 2026-09-13 00:58 UTCEG score recompute
  25. 2026-09-13 00:58 UTCGHSA enrichment
Show 72 more
  1. 2026-09-12 15:02 UTCEPSS rescore
  2. 2026-09-12 12:57 UTCGHSA enrichment
  3. 2026-09-12 00:56 UTCEG score recompute
  4. 2026-09-12 00:56 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 12:55 UTCEG score recompute
  7. 2026-09-11 12:55 UTCGHSA enrichment
  8. 2026-09-11 00:48 UTCGHSA enrichment
  9. 2026-09-10 12:47 UTCEG score recompute
  10. 2026-09-10 12:47 UTCGHSA enrichment
  11. 2026-09-10 09:35 UTCEPSS rescore
  12. 2026-09-10 00:46 UTCGHSA enrichment
  13. 2026-09-09 12:44 UTCGHSA enrichment
  14. 2026-09-09 00:37 UTCEG score recompute
  15. 2026-09-09 00:37 UTCGHSA enrichment
  16. 2026-09-08 22:01 UTCEPSS rescore
  17. 2026-09-08 11:17 UTCGHSA enrichment
  18. 2026-09-08 11:15 UTCGHSA enrichment
  19. 2026-09-07 20:44 UTCEG score recompute
  20. 2026-09-07 20:44 UTCGHSA enrichment
  21. 2026-09-07 08:43 UTCGHSA enrichment
  22. 2026-09-06 20:40 UTCEG score recompute
  23. 2026-09-06 20:40 UTCGHSA enrichment
  24. 2026-09-06 13:48 UTCEPSS rescore
  25. 2026-09-06 08:39 UTCGHSA enrichment
  26. 2026-09-05 20:39 UTCEG score recompute
  27. 2026-09-05 20:38 UTCGHSA enrichment
  28. 2026-09-05 08:37 UTCGHSA enrichment
  29. 2026-09-04 20:35 UTCEG score recompute
  30. 2026-09-04 20:35 UTCGHSA enrichment
  31. 2026-09-04 08:29 UTCEG score recompute
  32. 2026-09-04 08:29 UTCGHSA enrichment
  33. 2026-09-04 05:07 UTCEPSS rescore
  34. 2026-09-03 20:29 UTCGHSA enrichment
  35. 2026-09-03 08:28 UTCGHSA enrichment
  36. 2026-09-02 20:27 UTCEG score recompute
  37. 2026-09-02 20:27 UTCGHSA enrichment
  38. 2026-09-02 14:12 UTCEPSS rescore
  39. 2026-09-02 07:46 UTCGHSA enrichment
  40. 2026-09-01 19:46 UTCEG score recompute
  41. 2026-09-01 19:46 UTCGHSA enrichment
  42. 2026-09-01 13:54 UTCEPSS rescore
  43. 2026-09-01 07:36 UTCEG score recompute
  44. 2026-09-01 07:36 UTCGHSA enrichment
  45. 2026-09-01 04:40 UTCEPSS rescore
  46. 2026-09-01 04:40 UTCEPSS rescore
  47. 2026-08-31 19:32 UTCGHSA enrichment
  48. 2026-08-31 16:29 UTCEG score recompute
  49. 2026-08-31 16:28 UTCGHSA enrichment
  50. 2026-08-31 16:00 UTCEG score recompute
  51. 2026-08-31 15:59 UTCGHSA enrichment
  52. 2026-08-31 05:23 UTCEG score recompute
  53. 2026-08-31 05:23 UTCGHSA enrichment
  54. 2026-08-30 19:18 UTCEPSS rescore
  55. 2026-08-30 19:17 UTCEPSS rescore
  56. 2026-08-30 17:22 UTCGHSA enrichment
  57. 2026-08-30 05:21 UTCEG score recompute
  58. 2026-08-30 05:21 UTCGHSA enrichment
  59. 2026-08-30 01:22 UTCEPSS rescore
  60. 2026-08-29 17:19 UTCGHSA enrichment
  61. 2026-08-29 04:41 UTCEG score recompute
  62. 2026-08-29 04:41 UTCGHSA enrichment
  63. 2026-08-28 21:42 UTCEPSS rescore
  64. 2026-08-28 16:39 UTCEG score recompute
  65. 2026-08-28 16:39 UTCGHSA enrichment
  66. 2026-08-28 15:39 UTCEG score recompute
  67. 2026-08-28 15:39 UTCGHSA enrichment
  68. 2026-08-28 12:34 UTCEG score recompute
  69. 2026-08-28 12:33 UTCGHSA enrichment
  70. 2026-08-28 00:31 UTCEG score recompute
  71. 2026-08-27 23:23 UTCEG score recompute
  72. 2026-08-27 23:23 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-76940?
CVE-2026-76940 is a high vulnerability published on August 27, 2026. The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This could allow an attacker to perform automated authentication attacks against deployments that rely on password based authentication.
When was CVE-2026-76940 disclosed?
CVE-2026-76940 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-2026-76940 actively exploited?
CVE-2026-76940 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 70.5% of all scored CVEs.
What is the CVSS score of CVE-2026-76940?
CVE-2026-76940 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-76940?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76940, 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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