CVE-2026-73777

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. 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
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: 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 endpoint of AOS-CX switches that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 4, 2026

Advisory Details (1)

Auto-updated Sep 1, 2026
No patch confirmed yet.
generic
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US

Vendor Advisories for CVE-2026-73777(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 24× in last 7d / 92× 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. 2026-09-25 01:45 UTCEG score recompute
  2. 2026-09-25 01:45 UTCGHSA enrichment
  3. 2026-09-24 13:27 UTCGHSA enrichment
  4. 2026-09-24 01:08 UTCEG score recompute
  5. 2026-09-24 01:08 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 12:51 UTCGHSA enrichment
  8. 2026-09-23 00:33 UTCEG score recompute
  9. 2026-09-23 00:33 UTCGHSA enrichment
  10. 2026-09-22 12:15 UTCGHSA enrichment
  11. 2026-09-21 23:56 UTCEG score recompute
  12. 2026-09-21 23:56 UTCGHSA enrichment
  13. 2026-09-21 21:09 UTCEPSS rescore
  14. 2026-09-21 11:37 UTCGHSA enrichment
  15. 2026-09-20 23:19 UTCEG score recompute
  16. 2026-09-20 23:19 UTCGHSA enrichment
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-20 10:42 UTCGHSA enrichment
  19. 2026-09-19 22:16 UTCEG score recompute
  20. 2026-09-19 22:15 UTCGHSA enrichment
  21. 2026-09-19 09:57 UTCGHSA enrichment
  22. 2026-09-18 21:25 UTCEG score recompute
  23. 2026-09-18 21:25 UTCGHSA enrichment
  24. 2026-09-18 19:28 UTCEPSS rescore
  25. 2026-09-18 08:59 UTCGHSA enrichment
Show 67 more
  1. 2026-09-17 20:40 UTCEG score recompute
  2. 2026-09-17 20:40 UTCGHSA enrichment
  3. 2026-09-17 04:11 UTCGHSA enrichment
  4. 2026-09-16 15:53 UTCEG score recompute
  5. 2026-09-16 15:53 UTCGHSA enrichment
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 05:15 UTCEPSS rescore
  8. 2026-09-16 03:35 UTCGHSA enrichment
  9. 2026-09-15 15:17 UTCEG score recompute
  10. 2026-09-15 15:17 UTCGHSA enrichment
  11. 2026-09-15 03:12 UTCEPSS rescore
  12. 2026-09-15 02:59 UTCGHSA enrichment
  13. 2026-09-14 14:41 UTCGHSA enrichment
  14. 2026-09-14 02:23 UTCEG score recompute
  15. 2026-09-14 02:23 UTCGHSA enrichment
  16. 2026-09-13 14:06 UTCGHSA enrichment
  17. 2026-09-13 01:48 UTCEG score recompute
  18. 2026-09-13 01:48 UTCGHSA enrichment
  19. 2026-09-12 15:02 UTCEPSS rescore
  20. 2026-09-12 13:30 UTCGHSA enrichment
  21. 2026-09-12 01:12 UTCEG score recompute
  22. 2026-09-12 01:12 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 12:54 UTCEG score recompute
  25. 2026-09-11 12:54 UTCGHSA enrichment
  26. 2026-09-11 00:30 UTCGHSA enrichment
  27. 2026-09-10 12:12 UTCEG score recompute
  28. 2026-09-10 12:12 UTCGHSA enrichment
  29. 2026-09-10 09:35 UTCEPSS rescore
  30. 2026-09-09 23:54 UTCGHSA enrichment
  31. 2026-09-09 11:36 UTCGHSA enrichment
  32. 2026-09-08 23:18 UTCEG score recompute
  33. 2026-09-08 23:18 UTCGHSA enrichment
  34. 2026-09-08 22:01 UTCEPSS rescore
  35. 2026-09-08 05:12 UTCGHSA enrichment
  36. 2026-09-07 16:50 UTCEG score recompute
  37. 2026-09-07 16:50 UTCGHSA enrichment
  38. 2026-09-07 04:33 UTCGHSA enrichment
  39. 2026-09-06 16:15 UTCEG score recompute
  40. 2026-09-06 16:15 UTCGHSA enrichment
  41. 2026-09-06 13:48 UTCEPSS rescore
  42. 2026-09-06 03:56 UTCGHSA enrichment
  43. 2026-09-05 15:38 UTCEG score recompute
  44. 2026-09-05 15:38 UTCGHSA enrichment
  45. 2026-09-05 03:20 UTCGHSA enrichment
  46. 2026-09-04 15:01 UTCEG score recompute
  47. 2026-09-04 15:01 UTCGHSA enrichment
  48. 2026-09-04 13:53 UTCEG score recompute
  49. 2026-09-04 13:53 UTCGHSA enrichment
  50. 2026-09-04 05:07 UTCEPSS rescore
  51. 2026-09-04 01:34 UTCGHSA enrichment
  52. 2026-09-03 13:16 UTCEG score recompute
  53. 2026-09-03 13:16 UTCGHSA enrichment
  54. 2026-09-03 04:58 UTCEG score recompute
  55. 2026-09-03 04:58 UTCGHSA enrichment
  56. 2026-09-02 19:39 UTCEG score recompute
  57. 2026-09-02 19:39 UTCGHSA enrichment
  58. 2026-09-02 14:12 UTCEPSS rescore
  59. 2026-09-02 13:34 UTCEG score recompute
  60. 2026-09-02 13:34 UTCGHSA enrichment
  61. 2026-09-02 12:56 UTCEG score recompute
  62. 2026-09-02 12:56 UTCGHSA enrichment
  63. 2026-09-02 09:46 UTCEG score recompute
  64. 2026-09-02 09:46 UTCGHSA enrichment
  65. 2026-09-01 21:26 UTCEG score recompute
  66. 2026-09-01 20:33 UTCEG score recompute
  67. 2026-09-01 20:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73777?
CVE-2026-73777 is a high vulnerability published on September 1, 2026. Vulnerabilities have been identified in the API endpoint of AOS-CX switches that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls.
When was CVE-2026-73777 disclosed?
CVE-2026-73777 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73777 actively exploited?
CVE-2026-73777 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 63.2% of all scored CVEs.
What is the CVSS score of CVE-2026-73777?
CVE-2026-73777 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-73777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73777, 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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