CVE-2025-8873

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-05. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:arista, epss, ghsa
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: 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 with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, and attempt to reset the IPsec processing pipeline. After reset traffic may not resume being processed. There is no impact to non-IPsec traffic or to IPsec traffic not originating or terminating on the system. This issue was reported by an Arista customer.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
30.7%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 5, 2026

Advisory Details (1)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

Security Advisory 0127 - Arista

https://www.arista.com/en/support/advisories-notices/security-advisory/22869-security-advisory-0127

Vendor Advisories for CVE-2025-8873(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 19× 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 176 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-8873?
CVE-2025-8873 is a high vulnerability published on June 4, 2026. On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, and attempt to reset the IPsec processing pipeline. After reset traffic may not resume being…
When was CVE-2025-8873 disclosed?
CVE-2025-8873 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-8873 actively exploited?
CVE-2025-8873 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-8873?
CVE-2025-8873 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2025-8873?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-8873, 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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