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CVE-2021-33771

Severity
HIGH
CVSS
7.8
EPSS
0.06255
Risk score
58.39
CISA KEV
Yes
PoC
No
Published
2021-11-03
Modified
2021-11-03
First seen
2026-08-07
Aliases
EUVD-2021-20448, GHSA-JV37-XG37-JXGP
Products
Microsoft:Windows, Microsoft:Windows 10 Version 1507 10.0.0 <10.0.10240.19003, Microsoft:Windows 10 Version 1607 10.0.0 <10.0.14393.4530, Microsoft:Windows 10 Version 1809 10.0.0 <10.0.17763.2061, Microsoft:Windows 10 Version 1909 10.0.0 <10.0.18363.1679, Microsoft:Windows 10 Version 2004 10.0.0 <10.0.19041.1110, Microsoft:Windows 10 Version 20H2 10.0.0 <10.0.19042.1110, Microsoft:Windows 10 Version 21H1 10.0.0 <10.0.19043.1110, Microsoft:Windows 8.1 6.3.0 <6.3.9600.20069, Microsoft:Windows Server 2012 R2 (Server Core installation) 6.3.0 <6.3.9600.20069, Microsoft:Windows Server 2012 R2 6.3.0 <6.3.9600.20069, Microsoft:Windows Server 2016 (Server Core installation) 10.0.0 <10.0.14393.4530, Microsoft:Windows Server 2016 10.0.0 <10.0.14393.4530, Microsoft:Windows Server 2019 (Server Core installation) 10.0.0 <10.0.17763.2061, Microsoft:Windows Server 2019 10.0.0 <10.0.17763.2061, Microsoft:Windows Server version 2004 10.0.0 <10.0.19041.1110, Microsoft:Windows Server version 20H2 10.0.0 <10.0.19042.1110
Sources
euvd EUVD-2021-20448
cisa.gov CVE-2021-33771

Description

Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

References