Vulnerability Database

309,961

Total vulnerabilities in the database

CVE-2021-3661

A potential security vulnerability has been identified in certain HP Workstation BIOS (UEFI firmware) which may allow arbitrary code execution. HP is releasing firmware mitigations for the potential vulnerability.

  • Published: Dec 12, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-3661
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.4
  • AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWEs:

Software From Fixed in
hp / z1_all-in-one_g3_firmware 01.31 01.31.x
hp / z2_mini_g3_firmware 01.83 01.83.x
hp / z2_mini_g4_firmware 01.08.01 01.08.01.x
hp / z2_mini_g5_firmware 01.03.00_rev_a 01.03.00_rev_a.x
hp / z2_small_form_factor_g4_firmware 01.08.01 01.08.01.x
hp / z2_small_form_factor_g5_firmware 01.03.00_rev_a 01.03.00_rev_a.x
hp / z2_small_form_factor_g8_firmware 01.03.00_rev_a 01.03.00_rev_a.x
hp / z2_tower_g4_firmware 01.08.01 01.08.01.x
hp / z2_tower_g5_firmware 01.03.00_rev_a 01.03.00_rev_a.x
hp / z2_tower_g8_firmware 01.03.00_rev_a 01.03.00_rev_a.x
hp / z238_microtower_firmware 01.83 01.83.x
hp / z240_small_form_factor_firmware 01.83 01.83.x
hp / z240_tower_firmware 01.83 01.83.x
hp / z4_g4_firmware 02.75 02.75.x
hp / z440_firmware 2.58 2.58.x
hp / z6_g4_firmware 02.75 02.75.x
hp / z640_firmware 2.58 2.58.x
hp / z8_g4_firmware 02.75 02.75.x
hp / z840_firmware 2.58 2.58.x
hp / zcentral_4r_firmware 01.18 01.18.x