CVE-2020-1054: Win32k Elevation of Privilege Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Microsoft Win32k Privilege Escalation Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver handles objects in memory.
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Microsoft: Windows 10 Version 1507Microsoft: Windows 10 Version 1607Microsoft: Windows 10 Version 1709Microsoft: Windows 10 Version 1709 for 32-bit SystemsMicrosoft: Windows 10 Version 1803Microsoft: Windows 10 Version 1809Microsoft: Windows 10 Version 1903 for 32-bit SystemsMicrosoft: Windows 10 Version 1903 for ARM64-based SystemsMicrosoft: Windows 10 Version 1903 for x64-based SystemsMicrosoft: Windows 10 Version 1909Microsoft: Windows 7Microsoft: Windows 7 Service Pack 1Microsoft: Windows 8.1Microsoft: Windows Server 2008 R2 Service Pack 1Microsoft: Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft: Windows Server 2008 Service Pack 2Microsoft: Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft: Windows Server 2012Microsoft: Windows Server 2012 R2Microsoft: Windows Server 2012 R2 (Server Core installation)Microsoft: Windows Server 2012 (Server Core installation)Microsoft: Windows Server 2016Microsoft: Windows Server 2016 (Server Core installation)Microsoft: Windows Server 2019Microsoft: Windows Server 2019 (Server Core installation)Microsoft: Windows Server, version 1803 (Server Core Installation)Microsoft: Windows Server, version 1903 (Server Core installation)Microsoft: Windows Server, version 1909 (Server Core installation)
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1054 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)