CVE-2026-43325 wifi: iwlwifi: mvm: don't send a 6E related command when not supported

What is CVE-2026-43325?

CVE-2026-43325 is a medium-severity denial of service vulnerability in Linux kernel, published on 8 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: don't send a 6E related command when not supported

MCC_ALLOWED_AP_TYPE_CMD is related to 6E support. Do not send it if the device doesn't support 6E. Apparently, the firmware is mistakenly advertising support for this command even on AX201 which does not support 6E and then the firmware crashes.

Which versions are affected by CVE-2026-43325?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43325?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-43325 being exploited?

There is no known exploitation of CVE-2026-43325 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-43325, DEBIAN-CVE-2026-43325, GHSA-hhhc-p289-ww9x, ROOT-OS-DEBIAN-13-CVE-2026-43325, UBUNTU-CVE-2026-43325.