Out-of-Bounds Access in Linux mt7925 WiFi Driver Fixed

Publication date: 2026-03-25

Last updated on: 2026-04-24

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: Fix possible oob access in mt7925_mac_write_txwi_80211() Check frame length before accessing the mgmt fields in mt7925_mac_write_txwi_80211 in order to avoid a possible oob access.

CVSS Scores

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Meta Information

Published

2026-03-25

Last Modified

2026-04-24

Generated

2026-07-06

AI Q&A

2026-03-25

EPSS Evaluated

2026-07-05

NVD

CVE-2026-23363

EUVD

EUVD-2026-15343

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	6.7
linux	linux_kernel	From 6.19 (inc) to 6.19.7 (exc)
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	From 6.13 (inc) to 6.18.17 (exc)
linux	linux_kernel	From 6.7.1 (inc) to 6.12.77 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Linux kernel's wifi driver for the mt7925 chipset. It involves a possible out-of-bounds (oob) memory access in the function mt7925_mac_write_txwi_80211. The issue arises because the frame length was not properly checked before accessing management fields, which could lead to accessing memory outside the intended bounds.

Impact Analysis

A possible out-of-bounds access vulnerability can lead to undefined behavior such as memory corruption, crashes, or potentially allow an attacker to execute arbitrary code or cause denial of service. The exact impact depends on how the vulnerability is exploited in the context of the Linux kernel's wifi driver.

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