CVE-2026-43283

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-06. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 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: ethernet: ec_bhf: Fix dma_free_coherent() dma handle

dma_free_coherent() in error path takes priv->rx_buf.alloc_len as the dma handle. This would lead to improper unmapping of the buffer.

Change the dma handle to priv->rx_buf.alloc_phys.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 6, 2026

Last Modified

May 8, 2026

Advisory Details (8)

Auto-updated May 8, 2026
No patch confirmed yet.
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ffe68c3766997d82e9ccaf1cdbd47eba269c4aa2
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/accd0599bc8e73b962247c6c6c70ca7aa1f8e8d0
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8320727be7ff704e07c87624efc2a4a75f54b3ce
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7e54ff938bebb173822b4c38b33fc164c1cabf92
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1e300c33ef3cc544c2b9c693778fe9490cfe9184
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1b1d3c5d58a80a19d017a409aa2308162bab5bbf
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1b1371cd4032ae859838ebc74215f569987bb197
generic

net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f589ee54fd6d76d3f75e745f7f12c64cbd749e5

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 5.10.252—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Data Freshness Timeline

(refreshed 9× in last 7d / 30× 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 108 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43283?
CVE-2026-43283 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ecbhf: Fix dmafree_coherent() dma handle dmafreecoherent() in error path takes priv->rxbuf.alloclen as the dma handle. This would lead to improper unmapping of the buffer. Change the dma handle to…
When was CVE-2026-43283 disclosed?
CVE-2026-43283 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on May 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43283 actively exploited?
CVE-2026-43283 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-43283?
CVE-2026-43283 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-43283?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43283, 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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