High severity · published May 6, 2026
CVE-2026-43172
wifi: iwlwifi: fix 22000 series SMEM parsing
8.8
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.8 before 6.18.16; 6.19 before 6.19.6 · source: NVD
LI
Linux · Linux
ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 before 5cc021586420c5e13acc65da5bf73edd451e2c3e; ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 before b23c7cd616a6a113363be707b7b9e4bc41b18a07; ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 before 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9; ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 before 2b4b1510aaaf5b9fb57327ecffc20c055f61f205; ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 before 58192b9ce09b0f0f86e2036683bd542130b91a98; 5.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43172
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43172
Patch
https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9
Patch
https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205
Patch
https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98
git.kernel.org
https://git.kernel.org/stable/c/5cc021586420c5e13acc65da5bf73edd451e2c3e
git.kernel.org
https://git.kernel.org/stable/c/b23c7cd616a6a113363be707b7b9e4bc41b18a07
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