CVE-2021-33744

Windows Secure Kernel Mode Security Feature Bypass Vulnerability

Score

CVSS 3.1 6.7 Medium

Status

Modified - secure@microsoft.com

Published

2021-07-14

Last modified

2026-08-10

Affected products

• Windows 10 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows 10 1909 (Microsoft)
• Windows 10 21H1 (Microsoft)
• Windows Server 2004 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)
• Windows Server 20H2 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33744
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33744