What is CVE-2026-68406?

CVE-2026-68406 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 5.0 onward and patched in 5.10.265, 5.15.216, 6.1.183 and others. CVE-2026-68406 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-68406?

CVE-2026-68406 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-68406?

Yes, CVE-2026-68406 has been patched. Fixed versions include 5.10.265, 5.15.216, 6.1.183 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-68406 actively exploited?

CVE-2026-68406 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-68406

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate PMSR FTM preamble range PMSR FTM request parsing accepts preamble values outside the enumerated nl80211 preamble range. Reject out-of-range values before using them in the parser capability bit test using the policy. [drop unnecessary check]

Package Linux Kernel

Published 2026-08-10

Last modified 2026-08-19

Patch available

Yes

Affected versions

Linux kernel versions 5.0 and later are affected. Fixed in 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 and their respective stable series.

Affected from

≥ 5.0

Fixed in

✓ 5.10.265 5.10.x ✓ 5.15.216 5.15.x ✓ 6.1.183 6.1.x ✓ 6.6.148 6.6.x ✓ 6.12.101 6.12.x ✓ 6.18.42 6.18.x ✓ 7.1.6 7.1.x ✓ 7.2

References

8 total

Showing 5 of 8 references View all on NVD

Frequently asked questions

What is CVE-2026-68406?

CVE-2026-68406 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.0 onward and has been patched in 5.10.265, 5.15.216, 6.1.183 and others. CVE-2026-68406 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-68406?

Yes. CVE-2026-68406 has been patched. Fixed versions include 5.10.265, 5.15.216, 6.1.183 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-68406 actively exploited?

No. CVE-2026-68406 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.