CVE-2026-71187

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-28. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

The Ebyte device relies on client side authentication logic that can be reproduced by unauthenticated users. An attacker may generate valid authentication requests and bypass authentication to obtain administrative access to the device.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
Patch available. Sources: cisa.
cisa Patch Available

Ebyte NE2-D11 | CISA

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

Vendor Advisories for CVE-2026-71187(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 54× in last 7d / 178× 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 178 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-71187?
CVE-2026-71187 is a critical vulnerability published on August 27, 2026. The Ebyte device relies on client side authentication logic that can be reproduced by unauthenticated users. An attacker may generate valid authentication requests and bypass authentication to obtain administrative access to the device.
When was CVE-2026-71187 disclosed?
CVE-2026-71187 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-2026-71187 actively exploited?
CVE-2026-71187 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 56.8% of all scored CVEs.
What is the CVSS score of CVE-2026-71187?
CVE-2026-71187 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-71187?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71187, 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-2026-71187

Explore →

Is Your Infrastructure Affected by CVE-2026-71187?

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

Start Free Scan →Browse All CVEs