---
title: "CVE-2026-93793: Linux kernel iwlwifi - Undefined Vulnerability"
description: "Linux kernel iwlwifi mvm contains a validation vulnerability in TX_CMD response layout caused by improper frame_count checks, letting attackers potentially cause unexpected behavior, exploit requires crafted TX_CMD responses."
url: https://panop.io/threat-heartbeat/CVE-2026-93793/
---

# CVE-2026-93793 Linux kernel iwlwifi - Undefined Vulnerability

Linux kernel iwlwifi mvm contains a validation vulnerability in TX\_CMD response layout caused by improper frame\_count checks, letting attackers potentially cause unexpected behavior, exploit requires crafted TX\_CMD responses.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.24% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93793)

## Details

Type

Undefined Vulnerability

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

24 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-93793](https://nvd.nist.gov/vuln/detail/CVE-2026-93793)
- [https://git.kernel.org/stable/c/4d942dfc13aec393e003ab28ff58db744c26e6eb](https://git.kernel.org/stable/c/4d942dfc13aec393e003ab28ff58db744c26e6eb)
- [https://git.kernel.org/stable/c/8d70881707b47353359df57df12f6de67fdacdd2](https://git.kernel.org/stable/c/8d70881707b47353359df57df12f6de67fdacdd2)
- [https://git.kernel.org/stable/c/fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b](https://git.kernel.org/stable/c/fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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