CVE-2021-33771

EUVD-2021-20448
Windows Kernel Elevation of Privilege Vulnerability
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_10_1507
𝑥
< 10.0.10240.19003
microsoftwindows_10_1607
𝑥
< 10.0.14393.4530
microsoftwindows_10_1809
𝑥
< 10.0.17763.2061
microsoftwindows_10_1909
𝑥
< 10.0.18363.1679
microsoftwindows_10_2004
𝑥
< 10.0.19041.1110
microsoftwindows_10_20h2
𝑥
< 10.0.19042.1110
microsoftwindows_10_21h1
𝑥
< 10.0.19043.1110
microsoftwindows_8.1
-
microsoftwindows_rt_8.1
-
microsoftwindows_server_2004
𝑥
< 10.0.19041.1110
microsoftwindows_server_2008
-
microsoftwindows_server_2008
-
microsoftwindows_server_2012
-
microsoftwindows_server_2016
𝑥
< 10.0.14393.4530
microsoftwindows_server_2019
𝑥
< 10.0.17763.2061
microsoftwindows_server_20h2
𝑥
< 10.0.19042.1110
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
(x64, x86)
1607 (x64, x86)
1809 (arm64, x64, x86)
1909 (arm64, x64, x86)
2004 (arm64, x64, x86)
20H2 (arm64, x64, x86)
21H1 (arm64, x64, x86)
Windows 8.1
(x64, x86)
Windows RT 8.1
All
Windows Server
2004 Server Core
20H2 Server Core
Windows Server 2012 R2
Server Core
Standard
Windows Server 2016
Server Core
Standard
Windows Server 2019
Server Core
Standard