March 31, 2022 · Applied Cybernetics Group
CVE-2021-34484 — Microsoft Windows
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
- Added to KEV
2022-03-31- Federal due date
2022-04-21- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 96.2th percentile (score 0.144, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2021-34484
CISA short description
Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.