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.
Published: 2026-05-08
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The iwlwifi driver in the Linux kernel mistakenly sends a 6E capability command (MCC_ALLOWED_AP_TYPE_CMD) even when the underlying firmware does not advertise support for 6E. This incorrect command invocation causes the firmware to crash, disabling the wireless subsystem and interrupting network connectivity. The flaw lies in the driver’s lack of validation for the firmware’s advertised capabilities.

Affected Systems

Linux systems running a kernel version before the patch that contains this iwlwifi driver bug, using Intel wireless adapters that do not support 6E, including the AX201 device referenced in the description. Any distribution shipping the affected kernel will be vulnerable until updated.

Risk and Exploitability

The vulnerability has a CVSS score of 5.5, indicating moderate impact, and the EPSS score is less than 1%, suggesting a low probability of exploitation in the wild. It is not listed in the CISA KEV catalog. The flaw causes a firmware crash when the driver sends an unsupported 6E capability command, likely requiring local access or routine operation of the wireless device. The impact is a denial‑of‑service for wireless connectivity.

Generated by OpenCVE AI on May 15, 2026 at 19:52 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Linux kernel update that contains the iwlwifi patch to prevent sending unsupported 6E commands.
  • Reboot the system or reload the iwlwifi module so the updated driver takes effect.
  • Monitor system logs for firmware crash events (e.g., "iwlwifi: firmware error") to confirm that the issue has been resolved.

Generated by OpenCVE AI on May 15, 2026 at 19:52 UTC.

Tracking

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Advisories

No advisories yet.

History

Sat, 16 May 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Fri, 15 May 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Fri, 08 May 2026 19:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Fri, 08 May 2026 14:00:00 +0000

Type Values Removed Values Added
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.
Title wifi: iwlwifi: mvm: don't send a 6E related command when not supported
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T22:22:22.986Z

Reserved: 2026-05-01T14:12:56.002Z

Link: CVE-2026-43325

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-08T14:16:41.207

Modified: 2026-05-15T18:08:46.410

Link: CVE-2026-43325

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-08T00:00:00Z

Links: CVE-2026-43325 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T20:00:07Z

Weaknesses