CVE-2026-7473

MEDIUMPre-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
5.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 1%CVSS: 5.8Exploit: NoneExposed: 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)
EPSS
53.9%
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 58× in last 7d / 229× 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 339 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2026-7473?
CVE-2026-7473 is a medium 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.

Dependency Blast Radius

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