boxscore/security
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-2021-1732HIGH
Microsoft Windows 10 Version 1803 — Windows Win32k 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   .7776   99.5   YES
AFFECTED
  Product                                                  Versions  Fixed
  Windows 10 Version 1803                                  10.0.0 –  —
  Windows 10 Version 1809                                  10.0.0 –  —
  Windows Server 2019                                      10.0.0 –  —
  Windows Server 2019 (Server Core installation)           10.0.0 –  —
  Windows 10 Version 1909                                  10.0.0 –  —
  Windows Server, version 1909 (Server Core installation)  10.0.0 –  —
  Windows 10 Version 2004                                  10.0.0 –  —
  Windows Server version 2004                              10.0.0 –  —
  Windows 10 Version 20H2                                  10.0.0 –  —
  Windows Server version 20H2                              10.0.0 –  —
TIMELINE
  Dec 2   Reserved by microsoft
  Nov 3   Added to CISA KEV, remediation due 2021-11-17
  Nov 3   Published (CNA: microsoft)
  Aug 12  EXPLOIT PUBLISHED — CVE-2021-1732 (Microsoft Windows 10 Version 1803). Public exploit reference added.
CWE-787 · CNA: microsoft · CVSS v3.1 · 4 references · NVD status: Analyzed · KEV due November 17, 2021

Description

Windows Win32k Elevation of Privilege Vulnerability

Lifecycle

Complete event history — 4 events, chronological
DateEventDetail
December 2, 2020ReservedReserved by microsoft
November 3, 2021KEV ADDEDAdded to CISA KEV, remediation due 2021-11-17
November 3, 2021PublishedPublished (CNA: microsoft)
August 12, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2021-1732 (Microsoft Windows 10 Version 1803). Public exploit reference added.

Affected

Affected products and packages — 10 rows
VendorProduct / PackageEcosystemVersion introducedFixed
MicrosoftWindows 10 Version 1803—10.0.0—
MicrosoftWindows 10 Version 1809—10.0.0—
MicrosoftWindows Server 2019—10.0.0—
MicrosoftWindows Server 2019 (Server Core installation)—10.0.0—
MicrosoftWindows 10 Version 1909—10.0.0—
MicrosoftWindows Server, version 1909 (Server Core installation)—10.0.0—
MicrosoftWindows 10 Version 2004—10.0.0—
MicrosoftWindows Server version 2004—10.0.0—
MicrosoftWindows 10 Version 20H2—10.0.0—
MicrosoftWindows Server version 20H2—10.0.0—

Weaknesses

CWE-787

References (4)

Related

Authoritative record: CVE-2021-1732 at cve.org

Vendors: microsoft

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-1732 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.