CVE-2023-53715
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex Apparently the hex passphrase mechanism does not work on newer chips/firmware (e.g. BCM4387). It seems there was a simple way of passing it in binary all along, so use that and avoid the hexification. OpenBSD has been doing it like this from the beginning, so this should work on all chips. Also clear the structure before setting the PMK. This was leaking uninitialized stack contents to the device.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 22, 2025
First seenOct 22, 2025
How to fix
Update
- Linux Linux1687845eb8f37360a9ee849a3587ab659b090773, 2bc34facb90ceeff6f8c17d2006575a6d07c3825, 56c7e9c39bd54fd753c0c4b1ed10278cbd3a5f02, 4e8dc0e5c7636efaadbd7e488acd34b4291c0431, e242c66f7ecfe8f5b6eb308f4ea464fd8589c866, f8a6c53ff1d91acd5a20eb627edbffd816eb9a4e, 2fa3a5226b05e0a797c68b9609dcebe0cd236b27, 89b89e52153fda2733562776c7c9d9d3ebf8dd6d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < 1687845eb8f37360a9ee849a3587ab659b090773, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < 2bc34facb90ceeff6f8c17d2006575a6d07c3825, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < 56c7e9c39bd54fd753c0c4b1ed10278cbd3a5f02, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < 4e8dc0e5c7636efaadbd7e488acd34b4291c0431, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < e242c66f7ecfe8f5b6eb308f4ea464fd8589c866, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < f8a6c53ff1d91acd5a20eb627edbffd816eb9a4e, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < 2fa3a5226b05e0a797c68b9609dcebe0cd236b27, b8a64f0e96c2b258321ee03975aeb0f5e88a055b ≤ v < 89b89e52153fda2733562776c7c9d9d3ebf8dd6d, 4.13 | 1687845eb8f37360a9ee849a3587ab659b090773, 2bc34facb90ceeff6f8c17d2006575a6d07c3825, 56c7e9c39bd54fd753c0c4b1ed10278cbd3a5f02, 4e8dc0e5c7636efaadbd7e488acd34b4291c0431, e242c66f7ecfe8f5b6eb308f4ea464fd8589c866, f8a6c53ff1d91acd5a20eb627edbffd816eb9a4e, 2fa3a5226b05e0a797c68b9609dcebe0cd236b27, 89b89e52153fda2733562776c7c9d9d3ebf8dd6d |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.