CVE-2021-34484

Highest-risk unexploited with PoCs

Exploit code exists, no confirmed in-the-wild activity, ranked by EPSS

Actively Exploited

Confirmed exploited in the wild, sorted by most recently updated

CVSS 7.8EPSS 22%

Published 2021-08-12Updated 2026-08-10

Exploited in the wildPatch

Vulnerability details

Windows User Profile Service Elevation of Privilege Vulnerability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CNAmicrosoft

EPSS score history

Sources

2 links

PoC links are not available for guest users. Login to view them.

CISA Known Exploited CVE Organization

Profile

CVSS

7.8

EPSS

22%

Published

2021-08-12

Updated

2026-08-10

CNA

microsoft

Vendors

Microsoft

25 products

CPEs

cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2114:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1734:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1734:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1734:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1165:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1165:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1165:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1165:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1165:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19022:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19022:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4583:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4583:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4583:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:6.1.7601.25685:sp1:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_7:6.1.7601.25685:sp1:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20094:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20094:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20094:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21192:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21192:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25685:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23435:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20094:*:*:*:*:*:x64:*

Vulnerability dashboard

Highest-risk unexploited with PoCs

Actively Exploited

Recently Updated