Vulnerability Intelligence Report
Windows Spoofing Vulnerability
CVE-2020-1464
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:41.13%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-347 ↗CWE-347 Improper Verification of Cryptographic Signature
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1803 | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1809 | 10.0.0 < publication (affected) |
| Microsoft | Windows Server 2019 | 10.0.0 < publication (affected) |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1909 | 10.0.0 < publication (affected) |
| Microsoft | Windows Server, version 1909 (Server Core installation) | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1709 | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 < publication (affected) |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 2004 | 10.0.0 < publication (affected) |
| Microsoft | Windows Server version 2004 | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1507 | 10.0.0 < publication (affected) |
| Microsoft | Windows 10 Version 1607 | 10.0.0 < publication (affected) |
| Microsoft | Windows Server 2016 | 10.0.0 < publication (affected) |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 < publication (affected) |
| Microsoft | Windows 7 | 6.1.0 < publication (affected) |
| Microsoft | Windows 7 Service Pack 1 | 6.1.0 < publication (affected) |
| Microsoft | Windows 8.1 | 6.3.0 < publication (affected) |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.0 < publication (affected) |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | 6.0.0 < publication (affected) |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.0 < publication (affected) |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.0 < publication (affected) |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.0.0 < publication (affected) |
| Microsoft | Windows Server 2012 | 6.2.0 < publication (affected) |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.0 < publication (affected) |
| Microsoft | Windows Server 2012 R2 | 6.3.0 < publication (affected) |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.0 < publication (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2019-11-04T00:00:00 |
| Published | 2020-08-17T19:13:03 |
| Patch Date | 2020-08-11 |
| Last Updated | 2025-10-21T23:35:37 |
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