Vulnerability Database

318,250

Total vulnerabilities in the database

CVE-2021-21539

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.

  • Published: Apr 30, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-21539
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L

CVSS v2:

  • Severity: Low
  • Score: 4.6
  • AV:N/AC:H/Au:S/C:P/I:P/A:P

CWEs:

Software From Fixed in
dell / idrac9_firmware - 4.40.00.00