CVE-2026-76657

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-01. a secondary CVSS source baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 10.0Exploit: None knownExposed: 0

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

Vulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.

CVSS v3
10.0
EG Score
10.0(high)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity100% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 2, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US

Vendor Advisories for CVE-2026-76657(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 51× in last 7d / 136× 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 136 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76657?
CVE-2026-76657 is a critical vulnerability published on September 1, 2026. Vulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative privileges leading to complete…
When was CVE-2026-76657 disclosed?
CVE-2026-76657 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76657 actively exploited?
CVE-2026-76657 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 63.4% of all scored CVEs.
What is the CVSS score of CVE-2026-76657?
CVE-2026-76657 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-76657?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76657, 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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