CVE-2021-34484
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
CVSS
7.8
High
EPSS
21.7%
p97
KEV
YES
Mar 31, 2022
Exploit Today
79
0-100
Published: Aug 12, 2021 · Last modified: Aug 10, 2026
15.6%EPSS · 30 days21.7%
2026-08-022026-08-31
Product
Microsoft / Windows
Vulnerability
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
Added to KEV
Mar 31, 2022
Remediate by
Apr 21, 2022
Known ransomware use
No
Summary description
Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-34484
Windows User Profile Service Elevation of Privilege Vulnerability
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