PT-2026-37423 · Linux · Linux Kernel

Published 2026-05-06 · Updated 2026-05-08 · CVE-2026-43113

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux Kernel (affected versions not specified)

Description An out-of-bounds array access exists in the WiFi wl1251 driver. The wl1251 tx packet cb() function uses a firmware completion ID, provided as a raw u8 from the completion block, to index the wl->tx frames[] array without verifying that the ID falls within the array's 16-entry limit.

Recommendations Restrict the use of the wl1251 tx packet cb() function or the wl1251 driver until a patch is applied. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-43113

Affected Products

Linux Kernel

References · 9

• https://git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a · Patch
• https://git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a · Patch
• https://git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf · Patch
• https://git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02 · Patch
• https://git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43113 · Security Note
• https://twitter.com/VulmonFeeds/status/2051995068425248976 · Twitter Post
• https://t.me/CVEtracker/52836 · Telegram Post
• https://t.me/cveNotify/162763 · Telegram Post