CVE-2026-93791

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.

Package Linux Kernel
Published 2026-09-24
Last modified 2026-10-03
Patch available
Yes

Affected versions

Linux kernel versions 4.9 and later are affected. Fixed in 6.6.158, 6.12.111, 6.18.53, 7.2 and their respective stable series.

Affected from
≥ 4.9
Fixed in
✓ 6.6.158 6.6.x ✓ 6.12.111 6.12.x ✓ 6.18.53 6.18.x ✓ 7.2

References

4 total

Frequently asked questions

  • What is CVE-2026-93791?

    CVE-2026-93791 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.9 onward and has been patched in 6.6.158, 6.12.111, 6.18.53 and others. CVE-2026-93791 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-93791?

    Yes. CVE-2026-93791 has been patched. Fixed versions include 6.6.158, 6.12.111, 6.18.53 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-93791 actively exploited?

    No. CVE-2026-93791 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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