CVE-2020-1054: Microsoft Win32k Privilege Escalation Vulnerability

Published May 21, 2020
·
Updated

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1143.

Other sources

Microsoft Win32k contains a privilege escalation vulnerability when the Windows kernel-mode driver fails to properly handle objects in memory. Successful exploitation allows an attacker to execute code in kernel mode.

CISA

Affected Software

43 affected components
Microsoft Win32k
Microsoft Windows 10
Microsoft Windows 10=1607
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1903
Microsoft Windows 10=1909
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=1803
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2019
Microsoft Windows 10 1507
Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows 10 1709
Microsoft Windows 10 1709
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1803
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1903
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 1909
Microsoft Windows 10 1909
Microsoft Windows Server 1803
Microsoft Windows Server 1903
Microsoft Windows Server 1909

Event History

May 21, 2020
CVE Published
via MITRE·10:52 PM
Data Sourced
via MITRE·10:52 PM
DescriptionWeakness
Data Sourced
via NVD·11:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 3, 2021
Known Exploited
via CISA·12:00 AM
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Frequently Asked Questions

1

What is the severity of CVE-2020-1054?

CVE-2020-1054 has a CVSS score indicating a high severity level due to its potential for elevation of privilege.

2

How can I mitigate CVE-2020-1054?

To mitigate CVE-2020-1054, apply the security update provided by Microsoft as soon as possible.

3

Which systems are affected by CVE-2020-1054?

CVE-2020-1054 affects multiple versions of Microsoft Windows 10, Windows 7, Windows 8.1, and various Windows Server editions.

4

Can CVE-2020-1054 be exploited remotely?

CVE-2020-1054 requires local access for exploitation, meaning an attacker needs to be on the system to take advantage of the vulnerability.

5

What type of vulnerability is CVE-2020-1054 classified as?

CVE-2020-1054 is classified as an elevation of privilege vulnerability.

Contact

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