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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00018.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
e4d6b7951812d98417feb10784e400e253caf633 affected < c3d7b90dc95020cd9282c4630e402fe224f7644e
e4d6b7951812d98417feb10784e400e253caf633 affected < 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14
e4d6b7951812d98417feb10784e400e253caf633 affected < d7029879bafdac2006c67553807d122283dc6cbf
e4d6b7951812d98417feb10784e400e253caf633 affected < 219ba67e69e49681e48c822d6eaafb5def032f34
e4d6b7951812d98417feb10784e400e253caf633 affected < 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332
Linux Linux affected
Version Status Constraints
2.6.24 affected —
0 unaffected < 2.6.24
6.6.140 unaffected ≤ 6.6.*
6.12.88 unaffected ≤ 6.12.*
6.18.30 unaffected ≤ 6.18.*
7.0.7 unaffected ≤ 7.0.*
7.1-rc3 unaffected ≤ *

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 cve-icon cve-icon
https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 cve-icon cve-icon
https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34 cve-icon cve-icon
https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e cve-icon cve-icon
https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf cve-icon cve-icon
History

Thu, 28 May 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125

Thu, 28 May 2026 10:15:00 +0000

Type Values Removed Values Added
Description 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.
Title wifi: b43: enforce bounds check on firmware key index in b43_rx()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-28T09:35:37.141Z

Reserved: 2026-05-13T15:03:33.098Z

Link: CVE-2026-46122

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-28T10:16:27.713

Modified: 2026-05-28T13:44:01.663

Link: CVE-2026-46122

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T13:15:22Z

Weaknesses