CVE-2026-53178

Analyzed Analyzed - Analysis Complete

Bounds Check Failure in Linux Kernel RTL8723BS WiFi Driver

Publication date: 2026-06-25

Last updated on: 2026-07-06

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: rtw_mlme: add bounds checks before ie_length subtraction Add guards to ensure ie_length is large enough before subtracting fixed IE offsets to prevent unsigned integer underflow.

CVSS Scores

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Meta Information

Published

2026-06-25

Last Modified

2026-07-06

Generated

2026-07-15

AI Q&A

2026-06-25

EPSS Evaluated

2026-07-14

NVD

CVE-2026-53178

EUVD

EUVD-2026-39269

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	From 5.15 (inc) to 7.0.13 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-191	The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Attack-Flow Graph

Executive Summary

This vulnerability in the Linux kernel's rtl8723bs staging driver involves a lack of proper bounds checking before subtracting the ie_length value. Without these checks, an unsigned integer underflow could occur when calculating IE offsets.

The issue was fixed by adding guards to ensure that ie_length is sufficiently large before performing the subtraction, preventing the underflow.

Impact Analysis

This vulnerability involves a lack of bounds checking in the Linux kernel's rtl8723bs driver, which could lead to an unsigned integer underflow. Such an issue may cause unexpected behavior or crashes in the affected component.

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