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
53.3%
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 89× in last 7d / 363× 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 367 total refreshes for this CVE.

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

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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