Findings

CVE-2021-34484

Microsoft Windows User Profile Service Privilege Escalation Vulnerability

Published Aug 12, 2021 · updated Aug 10, 2026 · microsoft windows 10 1507

Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 12, 2021 · Catalog

    Detected

    Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.

  2. Mar 31, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 21, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Aug 10, 2026 · Catalog

    Updated

    Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.

Required action

Apply updates per vendor instructions.

CISA due date Apr 21, 2022

Affected

  • cpe microsoft/windows 10 1507version unspecified
  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 1909version unspecified
  • cpe microsoft/windows 10 2004version unspecified
  • cpe microsoft/windows 10 20h2version unspecified
  • cpe microsoft/windows 10 21h1version unspecified
  • cpe microsoft/windows 7version unspecified
  • vendor Microsoft Windowsversion unspecified

Sources

  • CISA KEVCVE-2021-34484

    Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.

    cisa.gov
  • CVE.orgCVE-2021-34484

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2021-34484

    30-day exploitation probability 21.8%

    first.org
  • NIST NVDCVE-2021-34484

    Windows User Profile Service Elevation of Privilege Vulnerability

    nvd.nist.gov

References