title: Win32k Information Disclosure Vulnerability
description: An information disclosure vulnerability exists when the win32k component improperly provides kernel information. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system.
To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.
The security update addresses the vulnerability by correcting how win32k handles objects in memory.
problem types: Defense in Depth
affected:
{
vendor: Microsoft
product: Windows 10 Version 2004
cpes: cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
platforms: [32-bit Systems, ARM64-based Systems, x64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1803
cpes: [cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:arm64:*]
platforms: [32-bit Systems, x64-based Systems, ARM64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1809
cpes: [cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*]
platforms: [32-bit Systems, x64-based Systems, ARM64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1909
cpes: [cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*]
platforms: [32-bit Systems, x64-based Systems, ARM64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1709 for 32-bit Systems
cpes: cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
platforms: 32-bit Systems
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1709
cpes: cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
platforms: [x64-based Systems, ARM64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1903 for 32-bit Systems
cpes: cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
platforms: Unknown
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1903 for x64-based Systems
cpes: cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
platforms: Unknown
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1903 for ARM64-based Systems
cpes: cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
platforms: Unknown
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1507
cpes: [cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*]
platforms: [32-bit Systems, x64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Windows 10 Version 1607
cpes: [cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*]
platforms: [32-bit Systems, x64-based Systems]
versions:
version: 10.0.0, lessThan: publication, versionType: custom, status: affected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
]