Aug 2020: Windows Spoofing Vulnerability
CVE-2020-1464 Published on August 17, 2020

Windows Spoofing Vulnerability
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.

NVD

Known Exploited Vulnerability

This Microsoft Windows Spoofing Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. A spoofing vulnerability exists when Windows incorrectly validates file signatures.

The following remediation steps are recommended / required by May 3, 2022: Apply updates per vendor instructions.

Weakness Type

Improper Verification of Cryptographic Signature

The software does not verify, or incorrectly verifies, the cryptographic signature for data.

Products Associated with CVE-2020-1464

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Microsoft Windows 10

Microsoft Windows 7

Microsoft Windows 8.1

Microsoft Windows Rt 8 1

Microsoft Windows Server 2008

Microsoft Windows Server 2012

Microsoft Windows Server 2016

Microsoft Windows Server 2019

Microsoft Windows Server 2004

Microsoft Windows 10 1909

Microsoft Windows 10 1709

Microsoft Windows 10 1803

Microsoft Windows 10 2004

Microsoft Windows 10 1507

Microsoft Windows 10 1903

Microsoft Windows Server 1903

Microsoft Windows Server 1909

Microsoft Windows Server 2008 Sp2

Microsoft Windows Server 2008 R2

Microsoft Windows Server 2012 R2

Affected Versions

Microsoft Windows 10 Version 1803:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1809:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server 2019:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1909:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server, version 1909 (Server Core installation):

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1709 for 32-bit Systems:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1709:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1903 for 32-bit Systems:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1903 for x64-based Systems:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1903 for ARM64-based Systems:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server, version 1903 (Server Core installation):

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 2004:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server version 2004:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1507:

Version 10.0.0 and below publication is affected.

Microsoft Windows 10 Version 1607:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server 2016:

Version 10.0.0 and below publication is affected.

Microsoft Windows Server 2016 (Server Core installation):

Version 10.0.0 and below publication is affected.

Microsoft Windows 7:

Version 6.1.0 and below publication is affected.

Microsoft Windows 7 Service Pack 1:

Version 6.1.0 and below publication is affected.

Microsoft Windows 8.1:

Version 6.3.0 and below publication is affected.

Microsoft Windows Server 2008 Service Pack 2:

Version 6.0.0 and below publication is affected.

Microsoft Windows Server 2008 Service Pack 2 (Server Core installation):

Version 6.0.0 and below publication is affected.

Microsoft Windows Server 2008 Service Pack 2:

Version 6.0.0 and below publication is affected.

Microsoft Windows Server 2008 R2 Service Pack 1:

Version 6.1.0 and below publication is affected.

Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation):

Version 6.0.0 and below publication is affected.

Microsoft Windows Server 2012:

Version 6.2.0 and below publication is affected.

Microsoft Windows Server 2012 (Server Core installation):

Version 6.2.0 and below publication is affected.

Microsoft Windows Server 2012 R2:

Version 6.3.0 and below publication is affected.

Microsoft Windows Server 2012 R2 (Server Core installation):

Version 6.3.0 and below publication is affected.

Exploit Probability

EPSS

12.64%

Percentile

93.82%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.