Vulnerability Database

309,136

Total vulnerabilities in the database

CVE-2021-21574

Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated malicious admin user with local access to the system may potentially exploit this vulnerability to run arbitrary code and bypass UEFI restrictions.

  • Published: Jun 24, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-21574
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.2
  • AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.9
  • AV:L/AC:M/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
dell / alienware_m15_r6_firmware - 1.3.3
dell / chengming_3990_firmware - 1.4.1
dell / chengming_3991_firmware - 1.4.1
dell / g15_5510_firmware - 1.4.0
dell / g15_5511_firmware - 1.3.3
dell / g3_3500_firmware - 1.9.0.x
dell / g5_5500_firmware - 1.9.0
dell / g7_7500_firmware - 1.9.0
dell / g7_7700_firmware - 1.9.0
dell / inspiron_14_5418_firmware - 2.1.0_a06
dell / inspiron_15_5518_firmware - 2.1.0_a06
dell / inspiron_15_7510_firmware - 1.0.4
dell / inspiron_3501_firmware - 1.6.0
dell / inspiron_3880_firmware - 1.4.1
dell / inspiron_3881_firmware - 1.4.1
dell / inspiron_3891_firmware - 1.0.11
dell / inspiron_5300_firmware - 1.7.1
dell / inspiron_5301_firmware - 1.8.1
dell / inspiron_5310_firmware - 2.1.0
dell / inspiron_5400_2-in-1_firmware - 1.7.0
dell / inspiron_5400_aio_firmware - 1.4.0
dell / inspiron_5401_firmware - 1.7.2
dell / inspiron_5401_aio_firmware - 1.4.0
dell / inspiron_5402_firmware - 1.5.1
dell / inspiron_5406_2n1_firmware - 1.5.1
dell / inspiron_5408_firmware - 1.7.2
dell / inspiron_5409_firmware - 1.5.1
dell / inspiron_5410_2-in-1_firmware - 2.1.0
dell / inspiron_5501_firmware - 1.7.2
dell / inspiron_5502_firmware - 1.5.1
dell / inspiron_5508_firmware - 1.7.2
dell / inspiron_5509_firmware - 1.5.1
dell / inspiron_7300_firmware - 1.8.1
dell / inspiron_7300_2-in-1_firmware - 1.3.0
dell / inspiron_7306_2-in-1_firmware - 1.5.1
dell / inspiron_7400_firmware - 1.8.1
dell / inspiron_7500_firmware - 1.8.0
dell / inspiron_7500_2-in-1_firmware - 1.3.0
dell / inspiron_7501_firmware - 1.8.0
dell / inspiron_7506_firmware - 1.5.1
dell / inspiron_7610_firmware - 1.0.4
dell / inspiron_7700_aio_firmware - 1.4.0
dell / inspiron_7706_2-in-1_firmware - 1.5.1
dell / latitude_3120_firmware - 1.1.0
dell / latitude_3320_firmware - 1.4.0
dell / latitude_3410_firmware - 1.9.0
dell / latitude_3420_firmware - 1.8.0
dell / latitude_3510_firmware - 1.9.0
dell / latitude_3520_firmware - 1.8.0
dell / latitude_5310_firmware - 1.7.0
dell / latitude_5310_2-in-1_firmware - 1.7.0
dell / latitude_5320_firmware - 1.7.1
dell / latitude_5320_2-in-1_firmware - 1.7.1
dell / latitude_5410_firmware - 1.6.0
dell / latitude_5411_firmware - 1.6.0
dell / latitude_5420_firmware - 1.8.0
dell / latitude_5510_firmware - 1.6.0
dell / latitude_5511_firmware - 1.6.0
dell / latitude_5520_firmware - 1.7.1
dell / latitude_5521_firmware - 1.3.0_a03
dell / latitude_7210_2-in-1_firmware - 1.7.0
dell / latitude_7310_firmware - 1.7.0
dell / latitude_7320_firmware - 1.7.1
dell / latitude_7320_detachable_firmware - 1.4.0_a04
dell / latitude_7410_firmware - 1.7.0
dell / latitude_7420_firmware - 1.7.1
dell / latitude_7520_firmware - 1.7.1
dell / latitude_9410_firmware - 1.7.0
dell / latitude_9420_firmware - 1.4.1
dell / latitude_9510_firmware - 1.6.0
dell / latitude_9520_firmware - 1.5.2
dell / latitude_5421_firmware - 1.3.0_a03
dell / optiplex_3080_firmware - 2.1.1
dell / optiplex_3090_uff_firmware - 1.2.0
dell / optiplex_3280_all-in-one_firmware - 1.7.0
dell / optiplex_5080_firmware - 1.4.0
dell / optiplex_5090_tower_firmware - 1.1.35
dell / optiplex_5490_aio_firmware - 1.3.0
dell / optiplex_7080_firmware - 1.4.0
dell / optiplex_7090_tower_firmware - 1.1.35
dell / optiplex_7090_uff_firmware - 1.2.0
dell / optiplex_7480_all-in-one_firmware - 1.7.0
dell / optiplex_7490_all-in-one_firmware - 1.3.0
dell / optiplex_7780_all-in-one_firmware - 1.7.0
dell / precision_17_m5750_firmware - 1.8.2
dell / precision_3440_firmware - 1.4.0
dell / precision_3450_firmware - 1.1.35
dell / precision_3550_firmware - 1.6.0
dell / precision_3551_firmware - 1.6.0
dell / precision_3560_firmware - 1.7.1
dell / precision_3561_firmware - 1.3.0_a03
dell / precision_3640_firmware - 1.6.2
dell / precision_3650_mt_firmware - 1.2.0
dell / precision_5550_firmware - 1.8.1
dell / precision_5560_firmware - 1.3.2
dell / precision_5760_firmware - 1.1.3
dell / precision_7550_firmware - 1.8.0
dell / precision_7560_firmware - 1.1.2
dell / precision_7750_firmware - 1.8.0
dell / precision_7760_firmware - 1.1.2
dell / vostro_14_5410_firmware - 2.1.0_a06
dell / vostro_15_5510_firmware - 2.1.0_a06
dell / vostro_15_7510_firmware - 1.0.4
dell / vostro_3400_firmware - 1.6.0
dell / vostro_3500_firmware - 1.6.0
dell / vostro_3501_firmware - 1.6.0
dell / vostro_3681_firmware - 2.4.0
dell / vostro_3690_firmware - 1.0.11
dell / vostro_3881_firmware - 2.4.0
dell / vostro_3888_firmware - 2.4.0
dell / vostro_3890_firmware - 1.0.11
dell / vostro_5300_firmware - 1.7.1
dell / vostro_5301_firmware - 1.8.1
dell / vostro_5310_firmware - 2.1.0
dell / vostro_5401_firmware - 1.7.2
dell / vostro_5402_firmware - 1.5.1
dell / vostro_5501_firmware - 1.7.2
dell / vostro_5502_firmware - 1.5.1
dell / vostro_5880_firmware - 1.4.0
dell / vostro_5890_firmware - 1.0.11
dell / vostro_7500_firmware - 1.8.0
dell / xps_13_9305_firmware - 1.0.8
dell / xps_13_2in1_9310_firmware - 2.3.3
dell / xps_13_9310_firmware - 3.0.0
dell / xps_15_9500_firmware - 1.8.1
dell / xps_15_9510_firmware - 1.3.2
dell / xps_17_9700_firmware - 1.8.2
dell / xps_17_9710_firmware - 1.1.3