CVE-2026-53086

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-24. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

In the Linux kernel, the following vulnerability has been resolved:

net: bcmgenet: fix racing timeout handler

The bcmgenet_timeout handler tries to take down all tx queues when a single queue times out. This is over zealous and causes many race conditions with queues that are still chugging along. Instead lets only restart the timed out queue.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
30.6%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 28, 2026

Advisory Details (6)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

net: bcmgenet: fix racing timeout handler - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e85b0c0a12e967930044608311471b665baa315c
generic

net: bcmgenet: fix racing timeout handler - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e8206538cbaf4f4068e99a4cb1138690a1e00499
generic

net: bcmgenet: fix racing timeout handler - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c270e2bec3e55a716d25c35341091339457ac883
generic

net: bcmgenet: fix racing timeout handler - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ce1c26aac3b318886a57425f64b522da7389153
generic

net: bcmgenet: fix racing timeout handler - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/681fdfe823b4f1036ed50b58b8838c7917ea389c
generic

net: bcmgenet: fix racing timeout handler - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5393b2b5bee2ac51a0043dc7f4ac3475f053d08d

Vendor Advisories for CVE-2026-53086(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 83× in last 7d / 95× 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. 2026-07-07 06:11 UTCEG score recompute
  2. 2026-07-07 06:11 UTCGHSA enrichment
  3. 2026-07-07 02:18 UTCEG score recompute
  4. 2026-07-07 02:18 UTCGHSA enrichment
  5. 2026-07-06 22:19 UTCEG score recompute
  6. 2026-07-06 22:19 UTCGHSA enrichment
  7. 2026-07-06 18:23 UTCEG score recompute
  8. 2026-07-06 18:22 UTCGHSA enrichment
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 14:08 UTCEG score recompute
  12. 2026-07-06 14:08 UTCGHSA enrichment
  13. 2026-07-06 10:17 UTCEG score recompute
  14. 2026-07-06 10:17 UTCGHSA enrichment
  15. 2026-07-06 06:26 UTCEG score recompute
  16. 2026-07-06 06:26 UTCGHSA enrichment
  17. 2026-07-06 02:34 UTCEG score recompute
  18. 2026-07-06 02:34 UTCGHSA enrichment
  19. 2026-07-06 02:23 UTCEPSS rescore
  20. 2026-07-06 02:23 UTCEPSS rescore
  21. 2026-07-05 22:41 UTCEG score recompute
  22. 2026-07-05 22:41 UTCGHSA enrichment
  23. 2026-07-05 18:50 UTCEG score recompute
  24. 2026-07-05 18:50 UTCGHSA enrichment
  25. 2026-07-05 14:59 UTCEG score recompute
Show 70 more
  1. 2026-07-05 14:59 UTCGHSA enrichment
  2. 2026-07-05 11:08 UTCEG score recompute
  3. 2026-07-05 11:08 UTCGHSA enrichment
  4. 2026-07-05 07:17 UTCEG score recompute
  5. 2026-07-05 07:16 UTCGHSA enrichment
  6. 2026-07-05 03:25 UTCEG score recompute
  7. 2026-07-05 03:25 UTCGHSA enrichment
  8. 2026-07-04 23:34 UTCEG score recompute
  9. 2026-07-04 23:34 UTCGHSA enrichment
  10. 2026-07-04 19:43 UTCEG score recompute
  11. 2026-07-04 19:43 UTCGHSA enrichment
  12. 2026-07-04 15:51 UTCEG score recompute
  13. 2026-07-04 15:51 UTCGHSA enrichment
  14. 2026-07-04 12:01 UTCEG score recompute
  15. 2026-07-04 12:01 UTCGHSA enrichment
  16. 2026-07-04 08:10 UTCEG score recompute
  17. 2026-07-04 08:10 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 04:15 UTCEG score recompute
  20. 2026-07-04 04:14 UTCGHSA enrichment
  21. 2026-07-04 00:23 UTCEG score recompute
  22. 2026-07-04 00:23 UTCGHSA enrichment
  23. 2026-07-03 20:33 UTCEG score recompute
  24. 2026-07-03 20:32 UTCGHSA enrichment
  25. 2026-07-03 16:41 UTCEG score recompute
  26. 2026-07-03 16:41 UTCGHSA enrichment
  27. 2026-07-03 12:49 UTCEG score recompute
  28. 2026-07-03 12:49 UTCGHSA enrichment
  29. 2026-07-03 08:17 UTCEG score recompute
  30. 2026-07-03 08:17 UTCGHSA enrichment
  31. 2026-07-03 04:26 UTCEG score recompute
  32. 2026-07-03 04:25 UTCGHSA enrichment
  33. 2026-07-03 00:33 UTCEG score recompute
  34. 2026-07-03 00:33 UTCGHSA enrichment
  35. 2026-07-02 20:43 UTCEG score recompute
  36. 2026-07-02 20:42 UTCGHSA enrichment
  37. 2026-07-02 16:50 UTCEG score recompute
  38. 2026-07-02 16:50 UTCGHSA enrichment
  39. 2026-07-02 12:58 UTCEG score recompute
  40. 2026-07-02 12:58 UTCGHSA enrichment
  41. 2026-07-02 09:07 UTCEG score recompute
  42. 2026-07-02 09:07 UTCGHSA enrichment
  43. 2026-07-02 05:15 UTCEG score recompute
  44. 2026-07-02 05:15 UTCGHSA enrichment
  45. 2026-07-02 01:24 UTCEG score recompute
  46. 2026-07-02 01:24 UTCGHSA enrichment
  47. 2026-07-01 21:30 UTCEG score recompute
  48. 2026-07-01 21:30 UTCGHSA enrichment
  49. 2026-07-01 17:40 UTCEG score recompute
  50. 2026-07-01 17:39 UTCGHSA enrichment
  51. 2026-07-01 15:07 UTCEPSS rescore
  52. 2026-07-01 13:48 UTCEG score recompute
  53. 2026-07-01 13:48 UTCGHSA enrichment
  54. 2026-07-01 09:57 UTCEG score recompute
  55. 2026-07-01 09:57 UTCGHSA enrichment
  56. 2026-07-01 06:06 UTCEG score recompute▲ 9.80
  57. 2026-07-01 06:05 UTCGHSA enrichment
  58. 2026-06-30 23:22 UTCEPSS rescore
  59. 2026-06-29 14:06 UTCEPSS rescore
  60. 2026-06-29 14:06 UTCEPSS rescore
  61. 2026-06-28 14:07 UTCEPSS rescore
  62. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  63. 2026-06-28 04:56 UTCEPSS rescore
  64. 2026-06-28 04:56 UTCEPSS rescore
  65. 2026-06-28 00:07 UTCEG score recompute
  66. 2026-06-28 00:07 UTCGHSA enrichment
  67. 2026-06-27 03:08 UTCEPSS rescore
  68. 2026-06-25 13:49 UTCEPSS rescore
  69. 2026-06-24 18:13 UTCEG score recompute
  70. 2026-06-24 18:03 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-53086?
CVE-2026-53086 is a critical vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix racing timeout handler The bcmgenet_timeout handler tries to take down all tx queues when a single queue times out. This is over zealous and causes many race conditions with queues that are still chugging along.…
When was CVE-2026-53086 disclosed?
CVE-2026-53086 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53086 actively exploited?
CVE-2026-53086 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53086?
CVE-2026-53086 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-53086?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53086, 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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