Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2020-1464
Microsoft Windows 10 Version 1803 — Windows Spoofing Vulnerability
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .3895 98.6 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 1709 for 32-bit Systems 10.0.0 – —
Windows 10 Version 1709 10.0.0 – —
Windows 10 Version 1903 for 32-bit Systems 10.0.0 – —
Windows 10 Version 1903 for x64-based Systems 10.0.0 – —
+ 20 more
TIMELINE
Nov 4 Reserved by microsoft
Aug 17 Published (CNA: microsoft)
Nov 3 Added to CISA KEV, remediation due 2022-05-03
Description
A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files.
In an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded.
The update addresses the vulnerability by correcting how Windows validates file signatures.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| November 4, 2019 | Reserved | Reserved by microsoft |
| August 17, 2020 | Published | Published (CNA: microsoft) |
| November 3, 2021 | KEV ADDED | Added to CISA KEV, remediation due 2022-05-03 |
Affected
Affected products and packages — 30 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Microsoft | Windows 10 Version 1803 | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1809 | — | 10.0.0 | — |
| Microsoft | Windows Server 2019 | — | 10.0.0 | — |
| Microsoft | Windows Server 2019 (Server Core installation) | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1909 | — | 10.0.0 | — |
| Microsoft | Windows Server, version 1909 (Server Core installation) | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1709 | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | — | 10.0.0 | — |
| Microsoft | Windows Server, version 1903 (Server Core installation) | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 2004 | — | 10.0.0 | — |
| Microsoft | Windows Server version 2004 | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1507 | — | 10.0.0 | — |
| Microsoft | Windows 10 Version 1607 | — | 10.0.0 | — |
| Microsoft | Windows Server 2016 | — | 10.0.0 | — |
| Microsoft | Windows Server 2016 (Server Core installation) | — | 10.0.0 | — |
| Microsoft | Windows 7 | — | 6.1.0 | — |
| Microsoft | Windows 7 Service Pack 1 | — | 6.1.0 | — |
| Microsoft | Windows 8.1 | — | 6.3.0 | — |
| Microsoft | Windows Server 2008 Service Pack 2 | — | 6.0.0 | — |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | — | 6.0.0 | — |
| Microsoft | Windows Server 2008 Service Pack 2 | — | 6.0.0 | — |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | — | 6.1.0 | — |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | — | 6.0.0 | — |
| Microsoft | Windows Server 2012 | — | 6.2.0 | — |
| Microsoft | Windows Server 2012 (Server Core installation) | — | 6.2.0 | — |
| Microsoft | Windows Server 2012 R2 | — | 6.3.0 | — |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | — | 6.3.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-1464 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 Sunday, October 4, 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.
