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CVE-2020-1054CISA KEV

Microsoft Win32k Privilege Escalation Vulnerability

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEVCheck MSRC

CISA catalog record

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.

Product
Win32k
Added to KEV
3 Nov 2021
Federal remediation due
3 May 2022
Known ransomware use
Not reported
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (2)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  2. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2020-1054. The catalog has a separate collection scope from Microsoft release records.

cve-program · CVE-2020-1054

Published

Windows 10 Version 1507

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1507",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.10240.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1607

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1607",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.14393.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1709

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1709",
                    "platforms": [
                        "ARM64-based Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1709 for 32-bit Systems

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1709 for 32-bit Systems",
                    "platforms": [
                        "32-bit Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1803

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1803",
                    "platforms": [
                        "32-bit Systems",
                        "ARM64-based Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1809

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1809",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.17763.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1809

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1809",
                    "platforms": [
                        "ARM64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1903 for 32-bit Systems

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1903 for 32-bit Systems",
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1903 for ARM64-based Systems

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1903 for ARM64-based Systems",
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1903 for x64-based Systems

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1903 for x64-based Systems",
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 1909

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 1909",
                    "platforms": [
                        "32-bit Systems",
                        "ARM64-based Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 7

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 7",
                    "platforms": [
                        "32-bit Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.1.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 7 Service Pack 1

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 7 Service Pack 1",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.1.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 8.1

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 8.1",
                    "platforms": [
                        "32-bit Systems",
                        "ARM64-based Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.3.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2008 R2 Service Pack 1

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2008 R2 Service Pack 1",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.1.7601.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

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

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.1.7601.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2008 Service Pack 2

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2008 Service Pack 2",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.0.6003.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2008 Service Pack 2 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2008 Service Pack 2 (Server Core installation)",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.0.6003.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2012

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2012",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.2.9200.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2012 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2012 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.2.9200.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2012 R2

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2012 R2",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.3.9600.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2012 R2 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2012 R2 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "6.3.9600.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2016

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2016",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.14393.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2016 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2016 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.14393.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2019

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2019",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.17763.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server 2019 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server 2019 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.17763.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server, version 1803 (Server Core Installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server, version 1803  (Server Core Installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server, version 1903 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server, version 1903 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server, version 1909 (Server Core installation)

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server, version 1909 (Server Core installation)",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "publication",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 12:06 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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