CVE-2026-43387
Analyzed Analyzed - Analysis Complete
Buffer Overflow in Linux Kernel RTL8723BS Driver

Publication date: 2026-05-08

Last updated on: 2026-05-26

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: properly validate the data in rtw_get_ie_ex() Just like in commit 154828bf9559 ("staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser"), we don't trust the data in the frame so we should check the length better before acting on it
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Meta Information
Published
2026-05-08
Last Modified
2026-05-26
Generated
2026-06-19
AI Q&A
2026-05-08
EPSS Evaluated
2026-06-18
NVD
CVE-2026-43387
EUVD
EUVD-2026-28693
Affected Vendors & Products
Showing 10 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 6.2 (inc) to 6.6.130 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.203 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.167 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.19 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.78 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.9 (exc)
linux linux_kernel From 4.12 (inc) to 5.10.253 (exc)
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability exists in the Linux kernel's rtl8723bs staging driver. It involves improper validation of data in the function rtw_get_ie_ex(). Specifically, the code does not sufficiently check the length of the data before processing it, which can lead to out-of-bounds reads.

The issue was addressed by improving the validation of the data length in the rtw_get_ie_ex() function, similar to a previous fix for a related out-of-bounds read in the rtw_get_ie() parser.

Impact Analysis

An out-of-bounds read vulnerability like this can potentially lead to information disclosure or cause the system to behave unexpectedly, such as crashing or exposing sensitive memory contents.

Since this vulnerability is in a kernel driver, exploitation could affect system stability or security, depending on how the driver is used and the environment in which the kernel operates.

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