CVE-2026-46122

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

wifi: b43: enforce bounds check on firmware key index in b43_rx()

The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read.

Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 24, 2026

Advisory Details (8)

Auto-updated Jun 24, 2026
No patch confirmed yet.
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14
generic

wifi: b43: enforce bounds check on firmware key index in b43_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6

Vendor Advisories for CVE-2026-46122(2)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-07-27ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-07-27ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-07-27ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-07-27ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-07-27ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-07-27ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-07-27ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-07-27ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-07-27ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-07-27ubuntu

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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(22)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 53× 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 129 total refreshes for this CVE.

  1. 2026-07-27 14:13 UTCEPSS rescore
  2. 2026-07-27 09:49 UTCEG score recompute
  3. 2026-07-27 09:49 UTCVendor advisory
  4. 2026-07-27 09:49 UTCGHSA enrichment
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 14:54 UTCEPSS rescore
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:17 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 03:16 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
  12. 2026-07-21 15:24 UTCEPSS rescore
  13. 2026-07-20 17:08 UTCEPSS rescore
  14. 2026-07-19 14:31 UTCEPSS rescore
  15. 2026-07-19 02:29 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-16 17:03 UTCEPSS rescore
  18. 2026-07-16 10:27 UTCVendor advisory
  19. 2026-07-16 10:27 UTCGHSA enrichment
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 02:00 UTCEPSS rescore
  22. 2026-07-13 22:30 UTCEPSS rescore
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-12 05:46 UTCEPSS rescore
  25. 2026-07-11 21:21 UTCVendor advisory
Show 75 more
  1. 2026-07-11 21:21 UTCGHSA enrichment
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 18:35 UTCVendor advisory
  5. 2026-07-08 18:35 UTCGHSA enrichment
  6. 2026-07-08 15:16 UTCEPSS rescore
  7. 2026-07-07 13:46 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-02 14:22 UTCVendor advisory
  13. 2026-07-02 14:22 UTCGHSA enrichment
  14. 2026-07-01 15:42 UTCVendor advisory
  15. 2026-07-01 15:42 UTCGHSA enrichment
  16. 2026-07-01 15:07 UTCEPSS rescore
  17. 2026-07-01 03:14 UTCVendor advisory
  18. 2026-07-01 03:14 UTCGHSA enrichment
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-30 02:12 UTCVendor advisory
  21. 2026-06-30 02:12 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 13:46 UTCVendor advisory
  25. 2026-06-29 13:46 UTCGHSA enrichment
  26. 2026-06-28 19:19 UTCVendor advisory
  27. 2026-06-28 19:19 UTCGHSA enrichment
  28. 2026-06-28 14:07 UTCEPSS rescore
  29. 2026-06-28 06:45 UTCVendor advisory
  30. 2026-06-28 06:45 UTCGHSA enrichment
  31. 2026-06-28 04:56 UTCEPSS rescore
  32. 2026-06-28 04:56 UTCEPSS rescore
  33. 2026-06-27 18:20 UTCVendor advisory
  34. 2026-06-27 18:20 UTCGHSA enrichment
  35. 2026-06-27 05:30 UTCVendor advisory
  36. 2026-06-27 05:30 UTCGHSA enrichment
  37. 2026-06-27 03:08 UTCEPSS rescore
  38. 2026-06-26 16:53 UTCVendor advisory
  39. 2026-06-26 16:53 UTCGHSA enrichment
  40. 2026-06-25 23:43 UTCVendor advisory
  41. 2026-06-25 23:43 UTCGHSA enrichment
  42. 2026-06-25 13:49 UTCEPSS rescore
  43. 2026-06-25 11:17 UTCVendor advisory
  44. 2026-06-25 11:17 UTCGHSA enrichment
  45. 2026-06-24 22:51 UTCEG score recompute▲ 7.80
  46. 2026-06-24 22:51 UTCVendor advisory
  47. 2026-06-24 22:51 UTCGHSA enrichment
  48. 2026-06-24 18:02 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
  49. 2026-06-24 14:05 UTCEPSS rescore
  50. 2026-06-23 21:33 UTCEPSS rescore
  51. 2026-06-23 21:33 UTCEPSS rescore
  52. 2026-06-22 14:25 UTCEPSS rescore
  53. 2026-06-22 14:25 UTCEPSS rescore
  54. 2026-06-21 14:56 UTCEPSS rescore
  55. 2026-06-21 14:56 UTCEPSS rescore
  56. 2026-06-21 01:59 UTCEPSS rescore
  57. 2026-06-21 01:59 UTCEPSS rescore
  58. 2026-06-19 19:26 UTCEPSS rescore
  59. 2026-06-19 19:26 UTCEPSS rescore
  60. 2026-06-18 17:52 UTCEPSS rescore
  61. 2026-06-18 17:52 UTCEPSS rescore
  62. 2026-06-17 17:53 UTCEPSS rescore
  63. 2026-06-17 15:33 UTCGHSA enrichment
  64. 2026-06-16 17:52 UTCEPSS rescore
  65. 2026-06-15 17:49 UTCEPSS rescore
  66. 2026-06-14 23:28 UTCMITRE cvelistV5
  67. 2026-06-14 21:10 UTCVendor advisory
  68. 2026-06-14 21:10 UTCGHSA enrichment
  69. 2026-06-13 23:00 UTCEPSS rescore
  70. 2026-06-12 23:12 UTCEPSS rescore
  71. 2026-06-12 23:12 UTCEPSS rescore
  72. 2026-06-12 02:47 UTCVendor advisory
  73. 2026-06-12 02:47 UTCGHSA enrichment
  74. 2026-06-11 14:00 UTCEPSS rescore
  75. 2026-06-10 22:18 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-46122?
CVE-2026-46122 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43WARNON is non-enforcing in production builds,…
When was CVE-2026-46122 disclosed?
CVE-2026-46122 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46122 actively exploited?
CVE-2026-46122 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 97.0% of all scored CVEs.
What is the CVSS score of CVE-2026-46122?
CVE-2026-46122 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46122?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46122, 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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