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CVE-2021-33771

Known Exploited (CISA KEV)HIGH

7.8

CVSS Severity Score

EPSS Score61.9380%

EPSS Percentile97.56th

Published2021年7月14日

Last Modified2025年10月29日

Vulnerability Description

Windows Kernel Elevation of Privilege Vulnerability

Affected Platforms (CPE)

💻

Microsoft

Windows 10 1507

< 10.0.10240.19003

💻

Microsoft

Windows 10 1607

< 10.0.14393.4530

💻

Microsoft

Windows 10 1809

< 10.0.17763.2061

💻

Microsoft

Windows 10 1909

< 10.0.18363.1679

💻

Microsoft

Windows 10 2004

< 10.0.19041.1110

💻

Microsoft

Windows 10 20h2

< 10.0.19042.1110

💻

Microsoft

Windows 10 21h1

< 10.0.19043.1110

💻

Microsoft

Windows 8.1

All versions

💻

Microsoft

Windows Rt 8.1

All versions

💻

Microsoft

Windows Server 2004

< 10.0.19041.1110

💻

Microsoft

Windows Server 2008

All versions

💻

Microsoft

Windows Server 2008

All versions

💻

Microsoft

Windows Server 2012

All versions

💻

Microsoft

Windows Server 2016

< 10.0.14393.4530

💻

Microsoft

Windows Server 2019

< 10.0.17763.2061

💻

Microsoft

Windows Server 20h2

< 10.0.19042.1110

References & Advisories

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33771

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33771

🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33771

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