---
id: CVE-2021-36324
title: Dell BIOS contains an improper input validation vulnerability
summary: >-
  Dell BIOS contains an improper input validation vulnerability. A local
  authenticated malicious user may potentially exploit this vulnerability by
  using an SMI to gain arbitrary code execution in SMRAM.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-20
  - CWE-20
vendor: dell
product: alienware_13_r3_firmware
affected:
  - alienware_13_r3_firmware < 1.13.0
  - alienware_15_r3_firmware < 1.13.0
  - alienware_15_r4_firmware < 1.14.0
  - alienware_17_r4_firmware < 1.13.0
  - alienware_17_r5_firmware < 1.14.0
  - alienware_area_51m_r1_firmware < 1.15.1
  - alienware_area_51m_r2_firmware < 1.10.0
  - alienware_aurora_r11_firmware < 1.0.9
  - alienware_aurora_r12_firmware < 1.1.7
  - alienware_aurora_r7_firmware < 1.0.25
  - alienware_aurora_r8_firmware < 1.0.17
  - alienware_aurora_r9_firmware < 1.0.14
  - alienware_aurora_ryzen_edition_firmware < 2.2.4
  - alienware_m15_r1_firmware < 2.9.0
  - alienware_m15_r2_firmware < 1.9.0
  - alienware_m15_r3_firmware < 1.11.0
  - alienware_m17_r1_firmware < 2.9.0
  - alienware_m17_r2_firmware < 1.9.0
  - alienware_m17_r3_firmware < 1.11.0
  - alienware_x15_r1_firmware < 1.4.0
  - alienware_x17_r1_firmware < 1.4.0
  - chengming_3977_firmware < 1.13.0
  - chengming_3980_firmware < 2.19.0
  - chengming_3988_firmware < 1.7.0
  - chengming_3990_firmware < 1.5.1
  - chengming_3991_firmware < 1.5.1
  - g3_3579_firmware < 1.17.0
  - g3_3590_firmware < 1.14.0
  - g3_3779_firmware < 1.17.0
  - g5_5000_firmware < 1.3.0
  - g5_5090_firmware < 1.9.0
  - g5_5587_firmware < 1.17.0
  - g5_5590_firmware < 1.16.0
  - g7_7587_firmware < 1.17.0
  - g7_7588_firmware <= 1.17.0
  - g7_7590_firmware <= 1.16.0
  - g7_7790_firmware <= 1.16.0
  - embedded_box_pc_5000_firmware < 1.11.0
  - inspiron_13_5378_firmware < 1.34.0
  - inspiron_13_5379_firmware < 1.17.0
  - inspiron_14_3467_firmware < 2.16.0
  - inspiron_14_5468_firmware < 1.15.0
  - inspiron_15_3567_firmware < 2.16.0
  - inspiron_15_5566_firmware < 1.15.0
  - inspiron_15_5578_firmware < 1.34.0
  - inspiron_15_5579_firmware < 1.17.0
  - inspiron_15_5582_firmware < 2.11.0
  - inspiron_15_7570_firmware < 1.20.0
  - inspiron_15_7572_firmware < 1.8.0
  - inspiron_15_7573_firmware < 1.20.0
  - inspiron_15_7577_firmware < 1.14.0
  - inspiron_17_7773_firmware < 1.17.0
  - inspiron_3268_firmware < 1.17.1
  - inspiron_3277_firmware < 1.16.0
  - inspiron_3280_firmware < 1.12.0
  - inspiron_3470_firmware < 2.19.0
  - inspiron_3471_firmware < 1.7.0
  - inspiron_3476_firmware < 1.14.0
  - inspiron_3477_firmware < 1.16.0
  - inspiron_3480_firmware < 1.15.0
  - inspiron_3480_firmware < 1.12.0
  - inspiron_3481_firmware < 1.14.0
  - inspiron_3576_firmware < 1.14.0
  - inspiron_3580_firmware < 1.15.0
  - inspiron_3581_firmware < 1.14.0
  - inspiron_3668_firmware < 1.17.1
  - inspiron_3670_firmware < 2.19.0
  - inspiron_3671_firmware < 1.7.0
  - inspiron_3780_firmware < 1.15.0
  - inspiron_3781_firmware < 1.14.0
  - inspiron_3880_firmware < 1.5.1
  - inspiron_3881_firmware < 1.5.1
  - inspiron_5370_firmware < 1.19.0
  - inspiron_5400_firmware < 1.5.2
  - inspiron_5401_firmware < 1.5.2
  - inspiron_5477_firmware < 1.2.15
  - inspiron_5480_firmware < 2.11.0
  - inspiron_5481_firmware < 2.11.0
  - inspiron_5482_firmware < 2.11.0
  - inspiron_5490_firmware < 1.10.0
  - inspiron_5570_firmware < 1.6.0
  - inspiron_5580_firmware < 2.11.0
  - inspiron_5680_firmware < 2.7.0
  - inspiron_5770_firmware < 1.6.0
  - inspiron_7370_firmware < 1.20.0
  - inspiron_7373_firmware < 1.20.0
  - inspiron_7380_firmware < 1.14.0
  - inspiron_7386_firmware < 1.11.0
  - inspiron_7467_firmware < 1.15.0
  - inspiron_7472_firmware < 1.8.0
  - inspiron_7567_firmware < 1.15.0
  - inspiron_7580_firmware < 1.14.0
  - inspiron_7586_firmware < 1.11.0
  - inspiron_7590_firmware < 1.11.0
  - inspiron_7591_firmware < 1.11.0
  - inspiron_7700_firmware < 1.5.2
  - inspiron_7777_firmware < 1.2.15
  - inspiron_7786_firmware < 1.11.0
  - inspiron_7790_firmware < 1.10.0
  - inspiron_5491_firmware < 1.10.0
patched:
  - alienware_13_r3_firmware 1.13.0
  - alienware_15_r3_firmware 1.13.0
  - alienware_15_r4_firmware 1.14.0
  - alienware_17_r4_firmware 1.13.0
  - alienware_17_r5_firmware 1.14.0
  - alienware_area_51m_r1_firmware 1.15.1
  - alienware_area_51m_r2_firmware 1.10.0
  - alienware_aurora_r11_firmware 1.0.9
  - alienware_aurora_r12_firmware 1.1.7
  - alienware_aurora_r7_firmware 1.0.25
  - alienware_aurora_r8_firmware 1.0.17
  - alienware_aurora_r9_firmware 1.0.14
  - alienware_aurora_ryzen_edition_firmware 2.2.4
  - alienware_m15_r1_firmware 2.9.0
  - alienware_m15_r2_firmware 1.9.0
  - alienware_m15_r3_firmware 1.11.0
  - alienware_m17_r1_firmware 2.9.0
  - alienware_m17_r2_firmware 1.9.0
  - alienware_m17_r3_firmware 1.11.0
  - alienware_x15_r1_firmware 1.4.0
  - alienware_x17_r1_firmware 1.4.0
  - chengming_3977_firmware 1.13.0
  - chengming_3980_firmware 2.19.0
  - chengming_3988_firmware 1.7.0
  - chengming_3990_firmware 1.5.1
  - chengming_3991_firmware 1.5.1
  - g3_3579_firmware 1.17.0
  - g3_3590_firmware 1.14.0
  - g3_3779_firmware 1.17.0
  - g5_5000_firmware 1.3.0
  - g5_5090_firmware 1.9.0
  - g5_5587_firmware 1.17.0
  - g5_5590_firmware 1.16.0
  - g7_7587_firmware 1.17.0
  - embedded_box_pc_5000_firmware 1.11.0
  - inspiron_13_5378_firmware 1.34.0
  - inspiron_13_5379_firmware 1.17.0
  - inspiron_14_3467_firmware 2.16.0
  - inspiron_14_5468_firmware 1.15.0
  - inspiron_15_3567_firmware 2.16.0
  - inspiron_15_5566_firmware 1.15.0
  - inspiron_15_5578_firmware 1.34.0
  - inspiron_15_5579_firmware 1.17.0
  - inspiron_15_5582_firmware 2.11.0
  - inspiron_15_7570_firmware 1.20.0
  - inspiron_15_7572_firmware 1.8.0
  - inspiron_15_7573_firmware 1.20.0
  - inspiron_15_7577_firmware 1.14.0
  - inspiron_17_7773_firmware 1.17.0
  - inspiron_3268_firmware 1.17.1
  - inspiron_3277_firmware 1.16.0
  - inspiron_3280_firmware 1.12.0
  - inspiron_3470_firmware 2.19.0
  - inspiron_3471_firmware 1.7.0
  - inspiron_3476_firmware 1.14.0
  - inspiron_3477_firmware 1.16.0
  - inspiron_3480_firmware 1.12.0
  - inspiron_3481_firmware 1.14.0
  - inspiron_3576_firmware 1.14.0
  - inspiron_3580_firmware 1.15.0
  - inspiron_3581_firmware 1.14.0
  - inspiron_3668_firmware 1.17.1
  - inspiron_3670_firmware 2.19.0
  - inspiron_3671_firmware 1.7.0
  - inspiron_3780_firmware 1.15.0
  - inspiron_3781_firmware 1.14.0
  - inspiron_3880_firmware 1.5.1
  - inspiron_3881_firmware 1.5.1
  - inspiron_5370_firmware 1.19.0
  - inspiron_5400_firmware 1.5.2
  - inspiron_5401_firmware 1.5.2
  - inspiron_5477_firmware 1.2.15
  - inspiron_5480_firmware 2.11.0
  - inspiron_5481_firmware 2.11.0
  - inspiron_5482_firmware 2.11.0
  - inspiron_5490_firmware 1.10.0
  - inspiron_5570_firmware 1.6.0
  - inspiron_5580_firmware 2.11.0
  - inspiron_5680_firmware 2.7.0
  - inspiron_5770_firmware 1.6.0
  - inspiron_7370_firmware 1.20.0
  - inspiron_7373_firmware 1.20.0
  - inspiron_7380_firmware 1.14.0
  - inspiron_7386_firmware 1.11.0
  - inspiron_7467_firmware 1.15.0
  - inspiron_7472_firmware 1.8.0
  - inspiron_7567_firmware 1.15.0
  - inspiron_7580_firmware 1.14.0
  - inspiron_7586_firmware 1.11.0
  - inspiron_7590_firmware 1.11.0
  - inspiron_7591_firmware 1.11.0
  - inspiron_7700_firmware 1.5.2
  - inspiron_7777_firmware 1.2.15
  - inspiron_7786_firmware 1.11.0
  - inspiron_7790_firmware 1.10.0
  - inspiron_5491_firmware 1.10.0
published: '2021-11-12'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:17:37.830'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-36324'
references:
  - url: 'https://www.dell.com/support/kbdoc/en-us/000192967'
    label: security_alert@emc.com
  - url: 'https://www.dell.com/support/kbdoc/en-us/000192967'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00241
epssPercentile: 0.13933
ingestedAt: '2026-10-08T22:11:53.742Z'
---

## Overview

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

## Affected

- `alienware_13_r3_firmware < 1.13.0`
- `alienware_15_r3_firmware < 1.13.0`
- `alienware_15_r4_firmware < 1.14.0`
- `alienware_17_r4_firmware < 1.13.0`
- `alienware_17_r5_firmware < 1.14.0`
- `alienware_area_51m_r1_firmware < 1.15.1`
- `alienware_area_51m_r2_firmware < 1.10.0`
- `alienware_aurora_r11_firmware < 1.0.9`
- `alienware_aurora_r12_firmware < 1.1.7`
- `alienware_aurora_r7_firmware < 1.0.25`
- `alienware_aurora_r8_firmware < 1.0.17`
- `alienware_aurora_r9_firmware < 1.0.14`
- `alienware_aurora_ryzen_edition_firmware < 2.2.4`
- `alienware_m15_r1_firmware < 2.9.0`
- `alienware_m15_r2_firmware < 1.9.0`
- `alienware_m15_r3_firmware < 1.11.0`
- `alienware_m17_r1_firmware < 2.9.0`
- `alienware_m17_r2_firmware < 1.9.0`
- `alienware_m17_r3_firmware < 1.11.0`
- `alienware_x15_r1_firmware < 1.4.0`
- `alienware_x17_r1_firmware < 1.4.0`
- `chengming_3977_firmware < 1.13.0`
- `chengming_3980_firmware < 2.19.0`
- `chengming_3988_firmware < 1.7.0`
- `chengming_3990_firmware < 1.5.1`
- `chengming_3991_firmware < 1.5.1`
- `g3_3579_firmware < 1.17.0`
- `g3_3590_firmware < 1.14.0`
- `g3_3779_firmware < 1.17.0`
- `g5_5000_firmware < 1.3.0`
- `g5_5090_firmware < 1.9.0`
- `g5_5587_firmware < 1.17.0`
- `g5_5590_firmware < 1.16.0`
- `g7_7587_firmware < 1.17.0`
- `g7_7588_firmware <= 1.17.0`
- `g7_7590_firmware <= 1.16.0`
- `g7_7790_firmware <= 1.16.0`
- `embedded_box_pc_5000_firmware < 1.11.0`
- `inspiron_13_5378_firmware < 1.34.0`
- `inspiron_13_5379_firmware < 1.17.0`
- `inspiron_14_3467_firmware < 2.16.0`
- `inspiron_14_5468_firmware < 1.15.0`
- `inspiron_15_3567_firmware < 2.16.0`
- `inspiron_15_5566_firmware < 1.15.0`
- `inspiron_15_5578_firmware < 1.34.0`
- `inspiron_15_5579_firmware < 1.17.0`
- `inspiron_15_5582_firmware < 2.11.0`
- `inspiron_15_7570_firmware < 1.20.0`
- `inspiron_15_7572_firmware < 1.8.0`
- `inspiron_15_7573_firmware < 1.20.0`
- `inspiron_15_7577_firmware < 1.14.0`
- `inspiron_17_7773_firmware < 1.17.0`
- `inspiron_3268_firmware < 1.17.1`
- `inspiron_3277_firmware < 1.16.0`
- `inspiron_3280_firmware < 1.12.0`
- `inspiron_3470_firmware < 2.19.0`
- `inspiron_3471_firmware < 1.7.0`
- `inspiron_3476_firmware < 1.14.0`
- `inspiron_3477_firmware < 1.16.0`
- `inspiron_3480_firmware < 1.15.0`
- `inspiron_3480_firmware < 1.12.0`
- `inspiron_3481_firmware < 1.14.0`
- `inspiron_3576_firmware < 1.14.0`
- `inspiron_3580_firmware < 1.15.0`
- `inspiron_3581_firmware < 1.14.0`
- `inspiron_3668_firmware < 1.17.1`
- `inspiron_3670_firmware < 2.19.0`
- `inspiron_3671_firmware < 1.7.0`
- `inspiron_3780_firmware < 1.15.0`
- `inspiron_3781_firmware < 1.14.0`
- `inspiron_3880_firmware < 1.5.1`
- `inspiron_3881_firmware < 1.5.1`
- `inspiron_5370_firmware < 1.19.0`
- `inspiron_5400_firmware < 1.5.2`
- `inspiron_5401_firmware < 1.5.2`
- `inspiron_5477_firmware < 1.2.15`
- `inspiron_5480_firmware < 2.11.0`
- `inspiron_5481_firmware < 2.11.0`
- `inspiron_5482_firmware < 2.11.0`
- `inspiron_5490_firmware < 1.10.0`
- `inspiron_5570_firmware < 1.6.0`
- `inspiron_5580_firmware < 2.11.0`
- `inspiron_5680_firmware < 2.7.0`
- `inspiron_5770_firmware < 1.6.0`
- `inspiron_7370_firmware < 1.20.0`
- `inspiron_7373_firmware < 1.20.0`
- `inspiron_7380_firmware < 1.14.0`
- `inspiron_7386_firmware < 1.11.0`
- `inspiron_7467_firmware < 1.15.0`
- `inspiron_7472_firmware < 1.8.0`
- `inspiron_7567_firmware < 1.15.0`
- `inspiron_7580_firmware < 1.14.0`
- `inspiron_7586_firmware < 1.11.0`
- `inspiron_7590_firmware < 1.11.0`
- `inspiron_7591_firmware < 1.11.0`
- `inspiron_7700_firmware < 1.5.2`
- `inspiron_7777_firmware < 1.2.15`
- `inspiron_7786_firmware < 1.11.0`
- `inspiron_7790_firmware < 1.10.0`
- `inspiron_5491_firmware < 1.10.0`

## Remediation

Upgrade past the affected range:

- `alienware_13_r3_firmware 1.13.0`
- `alienware_15_r3_firmware 1.13.0`
- `alienware_15_r4_firmware 1.14.0`
- `alienware_17_r4_firmware 1.13.0`
- `alienware_17_r5_firmware 1.14.0`
- `alienware_area_51m_r1_firmware 1.15.1`
- `alienware_area_51m_r2_firmware 1.10.0`
- `alienware_aurora_r11_firmware 1.0.9`
- `alienware_aurora_r12_firmware 1.1.7`
- `alienware_aurora_r7_firmware 1.0.25`
- `alienware_aurora_r8_firmware 1.0.17`
- `alienware_aurora_r9_firmware 1.0.14`
- `alienware_aurora_ryzen_edition_firmware 2.2.4`
- `alienware_m15_r1_firmware 2.9.0`
- `alienware_m15_r2_firmware 1.9.0`
- `alienware_m15_r3_firmware 1.11.0`
- `alienware_m17_r1_firmware 2.9.0`
- `alienware_m17_r2_firmware 1.9.0`
- `alienware_m17_r3_firmware 1.11.0`
- `alienware_x15_r1_firmware 1.4.0`
- `alienware_x17_r1_firmware 1.4.0`
- `chengming_3977_firmware 1.13.0`
- `chengming_3980_firmware 2.19.0`
- `chengming_3988_firmware 1.7.0`
- `chengming_3990_firmware 1.5.1`
- `chengming_3991_firmware 1.5.1`
- `g3_3579_firmware 1.17.0`
- `g3_3590_firmware 1.14.0`
- `g3_3779_firmware 1.17.0`
- `g5_5000_firmware 1.3.0`
- `g5_5090_firmware 1.9.0`
- `g5_5587_firmware 1.17.0`
- `g5_5590_firmware 1.16.0`
- `g7_7587_firmware 1.17.0`
- `embedded_box_pc_5000_firmware 1.11.0`
- `inspiron_13_5378_firmware 1.34.0`
- `inspiron_13_5379_firmware 1.17.0`
- `inspiron_14_3467_firmware 2.16.0`
- `inspiron_14_5468_firmware 1.15.0`
- `inspiron_15_3567_firmware 2.16.0`
- `inspiron_15_5566_firmware 1.15.0`
- `inspiron_15_5578_firmware 1.34.0`
- `inspiron_15_5579_firmware 1.17.0`
- `inspiron_15_5582_firmware 2.11.0`
- `inspiron_15_7570_firmware 1.20.0`
- `inspiron_15_7572_firmware 1.8.0`
- `inspiron_15_7573_firmware 1.20.0`
- `inspiron_15_7577_firmware 1.14.0`
- `inspiron_17_7773_firmware 1.17.0`
- `inspiron_3268_firmware 1.17.1`
- `inspiron_3277_firmware 1.16.0`
- `inspiron_3280_firmware 1.12.0`
- `inspiron_3470_firmware 2.19.0`
- `inspiron_3471_firmware 1.7.0`
- `inspiron_3476_firmware 1.14.0`
- `inspiron_3477_firmware 1.16.0`
- `inspiron_3480_firmware 1.12.0`
- `inspiron_3481_firmware 1.14.0`
- `inspiron_3576_firmware 1.14.0`
- `inspiron_3580_firmware 1.15.0`
- `inspiron_3581_firmware 1.14.0`
- `inspiron_3668_firmware 1.17.1`
- `inspiron_3670_firmware 2.19.0`
- `inspiron_3671_firmware 1.7.0`
- `inspiron_3780_firmware 1.15.0`
- `inspiron_3781_firmware 1.14.0`
- `inspiron_3880_firmware 1.5.1`
- `inspiron_3881_firmware 1.5.1`
- `inspiron_5370_firmware 1.19.0`
- `inspiron_5400_firmware 1.5.2`
- `inspiron_5401_firmware 1.5.2`
- `inspiron_5477_firmware 1.2.15`
- `inspiron_5480_firmware 2.11.0`
- `inspiron_5481_firmware 2.11.0`
- `inspiron_5482_firmware 2.11.0`
- `inspiron_5490_firmware 1.10.0`
- `inspiron_5570_firmware 1.6.0`
- `inspiron_5580_firmware 2.11.0`
- `inspiron_5680_firmware 2.7.0`
- `inspiron_5770_firmware 1.6.0`
- `inspiron_7370_firmware 1.20.0`
- `inspiron_7373_firmware 1.20.0`
- `inspiron_7380_firmware 1.14.0`
- `inspiron_7386_firmware 1.11.0`
- `inspiron_7467_firmware 1.15.0`
- `inspiron_7472_firmware 1.8.0`
- `inspiron_7567_firmware 1.15.0`
- `inspiron_7580_firmware 1.14.0`
- `inspiron_7586_firmware 1.11.0`
- `inspiron_7590_firmware 1.11.0`
- `inspiron_7591_firmware 1.11.0`
- `inspiron_7700_firmware 1.5.2`
- `inspiron_7777_firmware 1.2.15`
- `inspiron_7786_firmware 1.11.0`
- `inspiron_7790_firmware 1.10.0`
- `inspiron_5491_firmware 1.10.0`