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Vulnerability record · CVE-2026-43172 · published 6 May 2026

CVE-2026-43172: Linux kernel vulnerability

Linux · Linux Kernel

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.

8.8 CVSS 3.1 High EPSS 0.38% · top 71.1%
8.8CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9 Patch
https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205 Patch
https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43172), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.