CVE-2026-43110

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
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

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

wifi: brcmfmac: validate bsscfg indices in IF events

brcmf_fweh_handle_if_event() validates the firmware-provided interface index before it touches drvr->iflist[], but it still uses the raw bsscfgidx field as an array index without a matching range check.

Reject IF events whose bsscfg index does not fit in drvr->iflist[] before indexing the interface array.

[add missing wifi prefix]

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
15.7%
KEV
Not listed

Published

May 6, 2026

Last Modified

June 1, 2026

Advisory Details (5)

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

wifi: brcmfmac: validate bsscfg indices in IF events - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb
generic

wifi: brcmfmac: validate bsscfg indices in IF events - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e
generic

wifi: brcmfmac: validate bsscfg indices in IF events - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6
generic

wifi: brcmfmac: validate bsscfg indices in IF events - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d
generic

wifi: brcmfmac: validate bsscfg indices in IF events - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d

Vendor Advisories for CVE-2026-43110(13)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:4.18.0-372.195.1.el8_62026-06-12redhat
redhatkernel-0:5.14.0-570.120.1.el9_62026-06-11redhat
redhatkernel-0:6.12.0-55.77.1.el10_02026-06-08redhat
redhatkernel-0:5.14.0-427.129.1.el9_42026-06-04redhat
redhatkernel-0:6.12.0-211.18.1.el10_22026-05-28redhat
redhatkernel-0:5.14.0-687.12.1.el9_82026-05-28redhat
linuxKernel @ 5.10.258—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 8× in last 7d / 31× 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 133 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43110?
CVE-2026-43110 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: validate bsscfg indices in IF events brcmffwehhandleifevent() validates the firmware-provided interface index before it touches drvr->iflist[], but it still uses the raw bsscfgidx field as an array index without a…
When was CVE-2026-43110 disclosed?
CVE-2026-43110 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43110 actively exploited?
CVE-2026-43110 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43110?
CVE-2026-43110 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-43110?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43110, 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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