CVE-2020-1464

Windows Spoofing Vulnerability

CVE-2020-1464 is fixed in 44 products on 1 platform, first by KB4571694, released August 11, 2020. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

Patch nowCISA KEVPublicly disclosed

CVSS

5.3

Important

Exploitation

Exploited

Reported by the vendor

CISA KEV

Nov 3, 2021

Federal due date May 3, 2022

EPSS

0.3895

98th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1607 for 32-bit Systems	14393.3866	KB4571694	Aug 11, 2020
Windows 10 Version 1607 for x64-based Systems	14393.3866	KB4571694	Aug 11, 2020
Windows 10 Version 1709 for 32-bit Systems	16299.2045	KB4571741	Aug 11, 2020
Windows 10 Version 1709 for ARM64-based Systems	16299.2045	KB4571741	Aug 11, 2020
Windows 10 Version 1709 for x64-based Systems	16299.2045	KB4571741	Aug 11, 2020
Windows 10 Version 1803 for 32-bit Systems	17134.1667	KB4571709	Aug 11, 2020
Windows 10 Version 1803 for ARM64-based Systems	17134.1667	KB4571709	Aug 11, 2020
Windows 10 Version 1803 for x64-based Systems	17134.1667	KB4571709	Aug 11, 2020
Windows 10 Version 1809 for 32-bit Systems	17763.1397	KB4565349	Aug 11, 2020
Windows 10 Version 1809 for ARM64-based Systems	17763.1397	KB4565349	Aug 11, 2020
Windows 10 Version 1809 for x64-based Systems	17763.1397	KB4565349	Aug 11, 2020
Windows 10 Version 1903 for 32-bit Systems		KB4565351	Aug 11, 2020
Windows 10 Version 1903 for ARM64-based Systems		KB4565351	Aug 11, 2020
Windows 10 Version 1903 for x64-based Systems		KB4565351	Aug 11, 2020
Windows 10 Version 1909 for 32-bit Systems		KB4565351	Aug 11, 2020
Windows 10 Version 1909 for ARM64-based Systems		KB4565351	Aug 11, 2020
Windows 10 Version 1909 for x64-based Systems		KB4565351	Aug 11, 2020
Windows 10 Version 2004 for 32-bit Systems	19041.450	KB4566782	Aug 11, 2020
Windows 10 Version 2004 for ARM64-based Systems	19041.450	KB4566782	Aug 11, 2020
Windows 10 Version 2004 for x64-based Systems	19041.450	KB4566782	Aug 11, 2020
Windows 10 for 32-bit Systems	10240.18666	KB4571692	Aug 11, 2020
Windows 10 for x64-based Systems	10240.18666	KB4571692	Aug 11, 2020
Windows 7 for 32-bit Systems Service Pack 1		KB4571729	Aug 11, 2020
Windows 7 for 32-bit Systems Service Pack 1		KB4571719	Aug 11, 2020
Windows 7 for x64-based Systems Service Pack 1		KB4571729	Aug 11, 2020
Windows 7 for x64-based Systems Service Pack 1		KB4571719	Aug 11, 2020
Windows 8.1 for 32-bit systems		KB4571703	Aug 11, 2020
Windows 8.1 for 32-bit systems		KB4571723	Aug 11, 2020
Windows 8.1 for x64-based systems		KB4571703	Aug 11, 2020
Windows 8.1 for x64-based systems		KB4571723	Aug 11, 2020
Windows RT 8.1		KB4571703	Aug 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1		KB4571729	Aug 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1		KB4571719	Aug 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)		KB4571729	Aug 11, 2020
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)		KB4571719	Aug 11, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2		KB4571730	Aug 11, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2		KB4571746	Aug 11, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)		KB4571730	Aug 11, 2020
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)		KB4571746	Aug 11, 2020
Windows Server 2008 for x64-based Systems Service Pack 2		KB4571730	Aug 11, 2020
Windows Server 2008 for x64-based Systems Service Pack 2		KB4571746	Aug 11, 2020
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)		KB4571730	Aug 11, 2020
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)		KB4571746	Aug 11, 2020
Windows Server 2012		KB4571702	Aug 11, 2020
Windows Server 2012		KB4571736	Aug 11, 2020
Windows Server 2012 (Server Core installation)		KB4571702	Aug 11, 2020
Windows Server 2012 (Server Core installation)		KB4571736	Aug 11, 2020
Windows Server 2012 R2		KB4571703	Aug 11, 2020
Windows Server 2012 R2		KB4571723	Aug 11, 2020
Windows Server 2012 R2 (Server Core installation)		KB4571703	Aug 11, 2020
Windows Server 2012 R2 (Server Core installation)		KB4571723	Aug 11, 2020
Windows Server 2016	14393.3866	KB4571694	Aug 11, 2020
Windows Server 2016 (Server Core installation)	14393.3866	KB4571694	Aug 11, 2020
Windows Server 2019	17763.1397	KB4565349	Aug 11, 2020
Windows Server 2019 (Server Core installation)	17763.1397	KB4565349	Aug 11, 2020
Windows Server, version 1903 (Server Core installation)		KB4565351	Aug 11, 2020
Windows Server, version 1909 (Server Core installation)		KB4565351	Aug 11, 2020
Windows Server, version 2004 (Server Core installation)	19041.450	KB4566782	Aug 11, 2020

Details

Published
August 11, 2020
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1464

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