SB2026050907 - Out-of-bounds read in Linux kernel rtl8723bs core driver
Published: May 9, 2026
Security Bulletin ID
SB2026050907
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-43386)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in rtw_restruct_wmm_ie when parsing input. A local user can supply crafted input to disclose sensitive information.
Remediation
Install update from vendor's website.
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