CVE-2026-43172 HIGH

CVE-2026-43172: wifi: iwlwifi: fix 22000 series SMEM parsing

Vendor Linux
Product Linux
Published May 6, 2026
Last update May 11, 2026

CVSS base score

8.8/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix 22000 series SMEM parsing If the firmware were to report three LMACs (which doesn't exist in hardware) then using "fwrt->smem_cfg.lmac[2]" is an overrun of the array. Reject such and use IWL_FW_CHECK instead of WARN_ON in this function.

Key dates

02Disclosure timeline

May 6, 2026 CVE published
May 11, 2026 Record updated