CVE-2026-46163
Published May 28, 2026
Modified Jun 1, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.
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EPSS — Exploit Prediction
0.0014
Probability of exploitation
0.04%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Other References
https://git.kernel.org/stable/c/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e
https://git.kernel.org/stable/c/4242db36de99de734cc1f60e5edd86cda7e598c6
https://git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35
https://git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525
https://git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205
https://git.kernel.org/stable/c/a92bd0503df2488f2cc040f329ebccff1c1934cb
https://git.kernel.org/stable/c/df805c1d085b7a96077f0964185764c87060950d
https://git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5
Frequently Asked Questions
What is CVE-2026-46163? +
In the Linux kernel, the following vulnerability has been resolved:
wifi: b43legacy: enforce bounds check on firmware key index in RX path
Same fix as b43: the firmware-controlled key index in b43legacy_rx()
can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is
non-enforcing in production builds, allowing an out-of-bounds read of
dev->key[].
Make the check enforcing by dropping the frame for invalid indices.
How do I check if I'm vulnerable to CVE-2026-46163? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.