CVE-2026-7473

CRITICALPre-NVD 5.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-06-09), indicating real-world exploitation has been confirmed by US federal agencies. the CNA's CVSS baseline 5.8 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, cna:arista, epss, ghsa
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 1%CVSS: 5.8Exploit: cisa kev · ssvc activeExposed: 0

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

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. This occurs because the switch does not verify the tunnel protocol type, potentially leading to the unexpected processing of non-configured tunnel traffic.

This issue has been reported as being exploited in the wild.

CVSS v3
5.8
EG Score
9.0(high)
EG Risk
96(Act)
EG Risk 96/100SSVC: Act

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
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
1%
EPSS %ILE
63%
KEV
⚠ Exploited

Published

June 5, 2026

Last Modified

June 10, 2026

Advisory Details (3)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-7473
generic🔴 Active Exploitation

Security Advisory 0137 - Arista

https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137
generic
https://www.arista.com/en/support/advisories-notices/security-advisory/22872-security-advisory-0137

Vendor Advisories for CVE-2026-7473(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 57× in last 7d / 246× 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 602 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2026-7473?
CVE-2026-7473 is a critical vulnerability published on June 5, 2026. On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a…
When was CVE-2026-7473 disclosed?
CVE-2026-7473 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7473 actively exploited?
Yes. CISA added CVE-2026-7473 to the Known Exploited Vulnerabilities catalog on June 9, 2026, affecting Arista Extensible Operating System. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-7473?
CVE-2026-7473 has a CVSS v4.0 base score of 5.8 (CNA self-assessment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2026-7473?
CVE-2026-7473 affects Arista Extensible Operating System. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-7473?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7473, 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.

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