Findings

CVE-2021-34486

Microsoft Windows Event Tracing Privilege Escalation Vulnerability

Published Aug 12, 2021 · updated Aug 10, 2026 · microsoft windows 10 1809

Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 12, 2021 · Catalog

    Detected

    Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.

  2. Mar 28, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 18, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Aug 10, 2026 · Catalog

    Updated

    Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.

Required action

Apply updates per vendor instructions.

CISA due date Apr 18, 2022

Affected

  • 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 server 2004version unspecified
  • cpe microsoft/windows server 2019version unspecified
  • cpe microsoft/windows server 20h2version unspecified
  • vendor Microsoft Windowsversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2021-34486

    Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2021-34486

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-34486

    30-day exploitation probability 9.3%

    first.org
  • NIST NVDVulnerability recordCVE-2021-34486

    Windows Event Tracing Elevation of Privilege Vulnerability

    nvd.nist.gov

References

CVE-2021-34486 · ZeroDay Findings