CVE-2021-33771
Microsoft Windows Kernel Privilege Escalation Vulnerability
Published Jul 14, 2021 · updated Aug 10, 2026 · microsoft windows 10 1507
Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.
Timeline
Detection, updates, and resolution for this record.
Jul 14, 2021 · Catalog
Detected
Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.
Nov 3, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Nov 17, 2021 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Aug 10, 2026 · Catalog
Updated
Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.
CISA due date Nov 17, 2021
Affected
- cpe microsoft/windows 10 1507version unspecified
- cpe microsoft/windows 10 1607version unspecified
- cpe microsoft/windows 10 1809version unspecified
- cpe microsoft/windows 10 1909version unspecified
- cpe microsoft/windows 10 2004version unspecified
- cpe microsoft/windows 10 20h2version unspecified
- cpe microsoft/windows 10 21h1version unspecified
- cpe microsoft/windows 8.1version unspecified
- vendor Microsoft Windowsversion unspecified
Sources
- CISA KEVCVE-2021-33771
Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.
cisa.gov - CVE.orgCVE-2021-33771
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-33771
30-day exploitation probability 10.2%
first.org - NIST NVDCVE-2021-33771
Windows Kernel Elevation of Privilege Vulnerability
nvd.nist.gov