---
id: CVE-2026-93799
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: validate sta_id in BA window status notif

  BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
  firmware notification and uses it to in…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: validate sta_id in BA window status notif

  BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
  firmware notification and uses it to in…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 3af512d6aac7eb6420086f124abb4426f5f4b369 <
    f9938eb95e2ddab4a58d3946a320abcbd60b56a4
  - >-
    Linux >= 3af512d6aac7eb6420086f124abb4426f5f4b369 <
    bb08fbbbd5568d33069485ecb0a1657f115a4e9f
  - >-
    Linux >= 3af512d6aac7eb6420086f124abb4426f5f4b369 <
    e35ae757c6462bfd3437bf58121bb721fe1f790c
  - >-
    Linux >= 3af512d6aac7eb6420086f124abb4426f5f4b369 <
    6aa77efaea9efea92e3090c35ad348fd759a3cf3
  - Linux 4.6
published: '2026-09-24'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:49.483'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93799'
references:
  - url: 'https://git.kernel.org/stable/c/6aa77efaea9efea92e3090c35ad348fd759a3cf3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bb08fbbbd5568d33069485ecb0a1657f115a4e9f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e35ae757c6462bfd3437bf58121bb721fe1f790c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f9938eb95e2ddab4a58d3946a320abcbd60b56a4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93799.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-93799'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2540504'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-93799'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93799'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93799.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00241
epssPercentile: 0.15217
ingestedAt: '2026-09-24T16:47:15.899Z'
cwe:
  - CWE-125
scores:
  nvd: 8.8
  vendor: 5.5
---

## Overview

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

wifi: iwlwifi: mvm: validate sta_id in BA window status notif

BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
firmware notification and uses it to index fw_id_to_mac_id[] without
bounds checking. Validate sta_id before array access to prevent
out-of-bounds indexing.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93799.json)