{"id":"CVE-2026-43172","title":"wifi: iwlwifi: fix 22000 series SMEM parsing","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: fix 22000 series SMEM parsing\n\nIf the firmware were to report three LMACs (which doesn't\nexist in hardware) then using \"fwrt->smem_cfg.lmac[2]\" is\nan ove…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 < 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9","Linux >= ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 < 2b4b1510aaaf5b9fb57327ecffc20c055f61f205","Linux >= ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 < 58192b9ce09b0f0f86e2036683bd542130b91a98","Linux 5.8"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:15:17.444168Z"},"published":"2026-05-06","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:20:34.994Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43172","references":[{"url":"https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9"},{"url":"https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205"},{"url":"https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98"}],"tags":["cve.org"],"epss":0.00375,"epssPercentile":0.29897,"ingestedAt":"2026-10-16T17:24:46.686Z","slug":"CVE-2026-43172","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: fix 22000 series SMEM parsing\n\nIf the firmware were to report three LMACs (which doesn't\nexist in hardware) then using \"fwrt->smem_cfg.lmac[2]\" is\nan overrun of the array. Reject such and use IWL_FW_CHECK\ninstead of WARN_ON in this function.\n\n## Affected\n\n- `Linux >= ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 < 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9`\n- `Linux >= ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 < 2b4b1510aaaf5b9fb57327ecffc20c055f61f205`\n- `Linux >= ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 < 58192b9ce09b0f0f86e2036683bd542130b91a98`\n- `Linux 5.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}