Vulnerability in Linux

CVE-2026-43172

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-43172: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

  • Linux — versions 5.8, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424
  • Linux Kernel

References

Frequently asked questions

What is CVE-2026-43172?
CVE-2026-43172 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-05-06.
How severe is CVE-2026-43172?
High severity. CVSS v3 base score is 8.8 out of 10.