CVE-2021-34486 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-34486HIGH

Microsoft Windows 10 Version 1809 — Windows Event Tracing Elevation of Privilege Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0925   94.9   YES

AFFECTED
  Product                                         Versions        Fixed
  Windows 10 Version 1809                         10.0.17763.0 –  —
  Windows 10 Version 1809                         10.0.0 –        —
  Windows 10 Version 1909                         10.0.0 –        —
  Windows 10 Version 2004                         10.0.0 –        —
  Windows 10 Version 20H2                         10.0.0 –        —
  Windows 10 Version 21H1                         10.0.0 –        —
  Windows Server 2019                             10.0.17763.0 –  —
  Windows Server 2019 (Server Core installation)  10.0.17763.0 –  —
  Windows Server version 2004                     10.0.0 –        —
  Windows Server version 20H2                     10.0.0 –        —

TIMELINE
  Jun 9   Reserved by microsoft
  Mar 28  Added to CISA KEV, remediation due 2022-04-18
  Mar 28  Published (CNA: microsoft)

CWE-416 · CNA: microsoft · CVSS v3.1 · 3 references · NVD status: Analyzed · KEV due April 18, 2022

Description

Windows Event Tracing Elevation of Privilege Vulnerability

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 9, 2021	Reserved	Reserved by microsoft
March 28, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-04-18
March 28, 2022	Published	Published (CNA: microsoft)

Affected

Affected products and packages — 10 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Windows 10 Version 1809	—	10.0.17763.0	—
Microsoft	Windows 10 Version 1809	—	10.0.0	—
Microsoft	Windows 10 Version 1909	—	10.0.0	—
Microsoft	Windows 10 Version 2004	—	10.0.0	—
Microsoft	Windows 10 Version 20H2	—	10.0.0	—
Microsoft	Windows 10 Version 21H1	—	10.0.0	—
Microsoft	Windows Server 2019	—	10.0.17763.0	—
Microsoft	Windows Server 2019 (Server Core installation)	—	10.0.17763.0	—
Microsoft	Windows Server version 2004	—	10.0.0	—
Microsoft	Windows Server version 20H2	—	10.0.0	—

Weaknesses

CWE-416

References (3)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34486 [Patch, Vendor Advisory]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34486 [Patch, Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34486 [US Government Resource]

Authoritative record: CVE-2021-34486 at cve.org

Vendors: microsoft

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-34486 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.