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Windows Kernel Elevation of Privilege Vulnerability

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2021-31979

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": "10.0.10240.19003",
                            "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": "10.0.14393.4530",
                            "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": "10.0.17763.2061",
                            "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": "10.0.17763.2061",
                            "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": "10.0.18363.1679",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 2004

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 2004",
                    "platforms": [
                        "32-bit Systems",
                        "ARM64-based Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "10.0.19041.1110",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 20H2

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 20H2",
                    "platforms": [
                        "32-bit Systems",
                        "ARM64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "10.0.19042.1110",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows 10 Version 21H1

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows 10 Version 21H1",
                    "platforms": [
                        "32-bit Systems",
                        "ARM64-based Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "10.0.19043.1110",
                            "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": "6.1.7601.25661",
                            "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": "6.1.7601.25661",
                            "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": "6.3.9600.20069",
                            "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": "6.1.7601.25661",
                            "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": "6.1.7601.25661",
                            "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": "6.0.6003.21167",
                            "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": "6.0.6003.21167",
                            "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": "6.2.9200.23409",
                            "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": "6.2.9200.23409",
                            "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": "6.3.9600.20069",
                            "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": "6.3.9600.20069",
                            "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": "10.0.14393.4530",
                            "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": "10.0.14393.4530",
                            "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": "10.0.17763.2061",
                            "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": "10.0.17763.2061",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server version 2004

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server version 2004",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "10.0.19041.1110",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Windows Server version 20H2

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Microsoft",
                    "product": "Windows Server version 20H2",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "10.0.0",
                            "lessThan": "10.0.19042.1110",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

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

ChangeIntel

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 13:09 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current