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.
Microsoft Win32k
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .7386 99.4 YES
AFFECTED
Product Versions Fixed
Windows 10 for 32-bit Systems – —
Windows Server 2016 – —
TIMELINE
Nov 26 Reserved by microsoft
Jan 10 Added to CISA KEV, remediation due 2022-07-10
Jan 10 Published (CNA: microsoft)
Aug 12 EXPLOIT PUBLISHED — CVE-2019-1458 (Microsoft Windows). Public exploit reference added.
Description
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| November 26, 2018 | Reserved | Reserved by microsoft |
| January 10, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-07-10 |
| January 10, 2022 | Published | Published (CNA: microsoft) |
| August 12, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2019-1458 (Microsoft Windows). Public exploit reference added. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Microsoft | Windows | — | 10 for 32-bit Systems | — |
| Microsoft | Windows Server | — | 2016 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-1458 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.