CVE-2026-43386
Published May 8, 2026
Modified May 12, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie The current code checks 'i + 5 < in_len' at the end of the if statement. However, it accesses 'in_ie[i + 5]' before that check, which can lead to an out-of-bounds read. Move the length check to the beginning of the conditional to ensure the index is within bounds before accessing the array.
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EPSS — Exploit Prediction
0.0001
Probability of exploitation
0.02%
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/12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020
https://git.kernel.org/stable/c/209644e25757c499e1c1f08c071ea0386d4448b6
https://git.kernel.org/stable/c/4dd2d9cf563c54e09d5f7eacf95c5b8f538b513b
https://git.kernel.org/stable/c/6ff2243d5e05a5239e39d4ba61d96b0ea3bf7259
https://git.kernel.org/stable/c/768f25613a9fe6766d15a4a72979657adfc1c6d8
https://git.kernel.org/stable/c/a75281626fc8fa6dc6c9cc314ee423e8bc45203b
https://git.kernel.org/stable/c/d97fc1b29513010b60fde874c7f0ba816744e18c
https://git.kernel.org/stable/c/e14a1148f02e8cf1ca380d57e4b95ca36c97f45d
Frequently Asked Questions
What is CVE-2026-43386? +
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie
The current code checks 'i + 5 < in_len' at the end of the if statement.
However, it accesses 'in_ie[i + 5]' before that check, which can lead
to an out-of-bounds read. Move the length check to the beginning of the
conditional to ensure the index is within bounds before accessing the
array.
How do I check if I'm vulnerable to CVE-2026-43386? +
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.