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Vulnerability · Published May 6, 2026 · Assigned by Linux

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

High 8.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 74.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-43172
Debian:13linux6.12.115-2DEBIAN-CVE-2026-43172
Debian:14linux6.19.6-1DEBIAN-CVE-2026-43172
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43172
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-43172
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-43172
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-43172

Affected products (as reported)

VendorProductVersions
Linux Linux ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 – before 5cc021586420c5e13acc65da5bf73edd451e2c3eebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 – before b23c7cd616a6a113363be707b7b9e4bc41b18a07ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 – before 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 – before 2b4b1510aaaf5b9fb57327ecffc20c055f61f205ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 – before 58192b9ce09b0f0f86e2036683bd542130b91a98
Linux Linux 5.8

Weakness: CWE-129 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References