Vulnerability Database

324,382

Total vulnerabilities in the database

CVE-2021-34458

Windows Kernel Remote Code Execution Vulnerability

  • Published: Jul 16, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-34458
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.9
  • AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 9
  • AV:N/AC:L/Au:S/C:C/I:C/A:C

No CWE or OWASP classifications available.

Software From Fixed in
microsoft / windows_server_2016 2004 2004.x
microsoft / windows_server_2016 20h2 20h2.x