CVE-2021-34484

HIGH KEV

Windows User Profile Service - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-34484 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added March 31, 2022.

Description

Windows User Profile Service Elevation of Privilege Vulnerability

References (2)

Core 2

Scores

CVSS v3 7.8
EPSS 0.0278
EPSS Percentile 86.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact total

Details

CISA KEV 2022-03-31
VulnCheck KEV 2022-03-28
InTheWild.io 2022-01-19
ENISA EUVD EUVD-2021-21139
Status published
Products (18)
microsoft/windows_10_1507 < 10.0.10240.19022
microsoft/windows_10_1607 < 10.0.14393.4583
microsoft/windows_10_1809 < 10.0.17763.2114
microsoft/windows_10_1909 < 10.0.18363.1734
microsoft/windows_10_2004 < 10.0.19041.1165
microsoft/windows_10_20h2 < 10.0.19042.1165
microsoft/windows_10_21h1 < 10.0.19043.1165
microsoft/windows_7
microsoft/windows_8.1
microsoft/windows_rt_8.1
... and 8 more
Published Aug 12, 2021
KEV Added Mar 31, 2022
Tracked Since Feb 18, 2026