---
id: CVE-2020-12321
title: >-
  Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products
  before version 21.110 may allow an unauthenticated user to potentially enable
  escalation of privilege via adjacent access.
summary: >-
  Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products
  before version 21.110 may allow an unauthenticated user to potentially enable
  escalation of privilege via adjacent access.
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: intel
product: dual_band_wireless-ac_3168_firmware
affected:
  - dual_band_wireless-ac_3168_firmware < 21.110
  - dual_band_wireless-ac_8260_firmware < 21.110
  - dual_band_wireless-ac_8265_firmware < 21.110
  - wi-fi_6_ax200_firmware < 21.110
  - wi-fi_6_ax201_firmware < 21.110
  - wireless-ac_9260_firmware < 21.110
  - wireless-ac_9461_firmware < 21.110
  - wireless-ac_9462_firmware < 21.110
  - wireless-ac_9560_firmware < 21.110
  - wireless_7265_(rev_d)_firmware < 21.110
  - dual_band_wireless-ac_3165_firmware < 21.110
patched:
  - dual_band_wireless-ac_3168_firmware 21.110
  - dual_band_wireless-ac_8260_firmware 21.110
  - dual_band_wireless-ac_8265_firmware 21.110
  - wi-fi_6_ax200_firmware 21.110
  - wi-fi_6_ax201_firmware 21.110
  - wireless-ac_9260_firmware 21.110
  - wireless-ac_9461_firmware 21.110
  - wireless-ac_9462_firmware 21.110
  - wireless-ac_9560_firmware 21.110
  - wireless_7265_(rev_d)_firmware 21.110
  - dual_band_wireless-ac_3165_firmware 21.110
published: '2020-11-12'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T22:16:56.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-12321'
references:
  - url: >-
      https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00403
    label: secure@intel.com
  - url: >-
      https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00403
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00982
epssPercentile: 0.61131
ingestedAt: '2026-10-08T23:16:47.309Z'
---

## Overview

Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before version 21.110 may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.

## Affected

- `dual_band_wireless-ac_3168_firmware < 21.110`
- `dual_band_wireless-ac_8260_firmware < 21.110`
- `dual_band_wireless-ac_8265_firmware < 21.110`
- `wi-fi_6_ax200_firmware < 21.110`
- `wi-fi_6_ax201_firmware < 21.110`
- `wireless-ac_9260_firmware < 21.110`
- `wireless-ac_9461_firmware < 21.110`
- `wireless-ac_9462_firmware < 21.110`
- `wireless-ac_9560_firmware < 21.110`
- `wireless_7265_(rev_d)_firmware < 21.110`
- `dual_band_wireless-ac_3165_firmware < 21.110`

## Remediation

Upgrade past the affected range:

- `dual_band_wireless-ac_3168_firmware 21.110`
- `dual_band_wireless-ac_8260_firmware 21.110`
- `dual_band_wireless-ac_8265_firmware 21.110`
- `wi-fi_6_ax200_firmware 21.110`
- `wi-fi_6_ax201_firmware 21.110`
- `wireless-ac_9260_firmware 21.110`
- `wireless-ac_9461_firmware 21.110`
- `wireless-ac_9462_firmware 21.110`
- `wireless-ac_9560_firmware 21.110`
- `wireless_7265_(rev_d)_firmware 21.110`
- `dual_band_wireless-ac_3165_firmware 21.110`