{"id":"CVE-2026-46163","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43legacy: enforce bounds check on firmware key index in RX path\n\nSame fix as b43: the firmware-controlled key index in b43legacy_rx()\ncan exceed dev->max_nr_keys…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43legacy: enforce bounds check on firmware key index in RX path\n\nSame fix as b43: the firmware-controlled key index in b43legacy_rx()\ncan exceed dev->max_nr_keys…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-129"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 2.6.24, < 5.10.258","linux_kernel >= 5.11, < 5.15.209","linux_kernel >= 5.16, < 6.1.175","linux_kernel >= 6.2, < 6.6.140","linux_kernel >= 6.7, < 6.12.88","linux_kernel >= 6.13, < 6.18.30","linux_kernel >= 6.19, < 7.0.7","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.7"],"published":"2026-05-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:19:47.423","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46163","references":[{"url":"https://git.kernel.org/stable/c/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4242db36de99de734cc1f60e5edd86cda7e598c6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a92bd0503df2488f2cc040f329ebccff1c1934cb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df805c1d085b7a96077f0964185764c87060950d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00176,"epssPercentile":0.06623,"ingestedAt":"2026-10-15T03:30:12.892Z","slug":"CVE-2026-46163","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43legacy: enforce bounds check on firmware key index in RX path\n\nSame fix as b43: the firmware-controlled key index in b43legacy_rx()\ncan exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is\nnon-enforcing in production builds, allowing an out-of-bounds read of\ndev->key[].\n\nMake the check enforcing by dropping the frame for invalid indices.\n\n## Affected\n\n- `linux_kernel >= 2.6.24, < 5.10.258`\n- `linux_kernel >= 5.11, < 5.15.209`\n- `linux_kernel >= 5.16, < 6.1.175`\n- `linux_kernel >= 6.2, < 6.6.140`\n- `linux_kernel >= 6.7, < 6.12.88`\n- `linux_kernel >= 6.13, < 6.18.30`\n- `linux_kernel >= 6.19, < 7.0.7`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.7`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}