Vulnerability Database

310,057

Total vulnerabilities in the database

CVE-2021-21557

Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of service, arbitrary code execution, or information disclosure in System Management Mode.

  • Published: Jun 14, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-21557
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.1
  • AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L

CVSS v2:

  • Severity: High
  • Score: 7.2
  • AV:L/AC:L/Au:N/C:C/I:C/A:C

CWEs: