Reference page — cumulative record through Wednesday, October 7, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U H H H 7.8 .0415 90.6 YES
AFFECTED Product Versions Fixed Windows 7 for 32-bit Systems Service Pack 1 – — Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Core installation) – —
TIMELINE Nov 26 Reserved by microsoft Apr 9 Published (CNA: microsoft) Nov 3 Added to CISA KEV, remediation due 2022-05-03
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'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0803.
| Date | Event | Detail |
|---|---|---|
| November 26, 2018 | Reserved | Reserved by microsoft |
| April 9, 2019 | Published | Published (CNA: microsoft) |
| November 3, 2021 | KEV ADDED | Added to CISA KEV, remediation due 2022-05-03 |
Authoritative record: CVE-2019-0859 at cve.org
Vendors: microsoft
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-0859 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, October 7, 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.
