CVE-2026-46122wifi: b43: enforce bounds check on firmware key index in b43_rx()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Undergoing Analysis
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from e4d6b7951812d98417feb10784e400e253caf633 before 135cb49c9a42a02cceeac7b49ec03e267f7ed6d6; from e4d6b7951812d98417feb10784e400e253caf633 before 3157ad40b084a8f3932da2641749ab45e99b933e; from e4d6b7951812d98417feb10784e400e253caf633 before 765709720e6af9a178abc40244a8d1aa39ac4e71; from e4d6b7951812d98417feb10784e400e253caf633 before c3d7b90dc95020cd9282c4630e402fe224f7644e; from e4d6b7951812d98417feb10784e400e253caf633 before 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14; from e4d6b7951812d98417feb10784e400e253caf633 before d7029879bafdac2006c67553807d122283dc6cbf; from e4d6b7951812d98417feb10784e400e253caf633 before 219ba67e69e49681e48c822d6eaafb5def032f34; from e4d6b7951812d98417feb10784e400e253caf633 before 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 2.6.24 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 7.1; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6patch
- https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933epatch
- https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71patch
- https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644epatch
- https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14patch
- https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbfpatch
- https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34patch
- https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332patch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.