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CVE-2020-1027CISA KEV

Microsoft Windows Kernel Privilege Escalation Vulnerability

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

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

CISA KEV Check MSRC

CISA catalog record

An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.

Product: Windows
Added to KEV: 23 May 2022
Federal remediation due: 13 Jun 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)

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

Explore global source statements, affected packages and advisory history for CVE-2020-1027. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

cve-program · CVE-2020-1027

Published

Windows

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "10 Version 1803 for 32-bit Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1803 for x64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1803 for ARM64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1809 for 32-bit Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1809 for x64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1809 for ARM64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1709 for 32-bit Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1709 for x64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1709 for ARM64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 for 32-bit Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 for x64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1607 for 32-bit Systems"
                        },
                        {
                            "status": "affected",
                            "version": "10 Version 1607 for x64-based Systems"
                        },
                        {
                            "status": "affected",
                            "version": "7 for 32-bit Systems Service Pack 1"
                        },
                        {
                            "status": "affected",
                            "version": "7 for x64-based Systems Service Pack 1"
                        },
                        {
                            "status": "affected",
                            "version": "8.1 for 32-bit systems"
                        },
                        {
                            "status": "affected",
                            "version": "8.1 for x64-based systems"
                        },
                        {
                            "status": "affected",
                            "version": "RT 8.1"
                        }
                    ]
                }

Windows Server

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows Server",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "version 1803  (Core Installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2019"
                        },
                        {
                            "status": "affected",
                            "version": "2019  (Core installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2016"
                        },
                        {
                            "status": "affected",
                            "version": "2016  (Core installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2008 for 32-bit Systems Service Pack 2"
                        },
                        {
                            "status": "affected",
                            "version": "2008 for 32-bit Systems Service Pack 2 (Core installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2008 for Itanium-Based Systems Service Pack 2"
                        },
                        {
                            "status": "affected",
                            "version": "2008 for x64-based Systems Service Pack 2"
                        },
                        {
                            "status": "affected",
                            "version": "2008 for x64-based Systems Service Pack 2 (Core installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2008 R2 for Itanium-Based Systems Service Pack 1"
                        },
                        {
                            "status": "affected",
                            "version": "2008 R2 for x64-based Systems Service Pack 1"
                        },
                        {
                            "status": "affected",
                            "version": "2008 R2 for x64-based Systems Service Pack 1 (Core installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2012"
                        },
                        {
                            "status": "affected",
                            "version": "2012 (Core installation)"
                        },
                        {
                            "status": "affected",
                            "version": "2012 R2"
                        },
                        {
                            "status": "affected",
                            "version": "2012 R2 (Core installation)"
                        }
                    ]
                }

Windows 10 Version 1909 for 32-bit Systems

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows 10 Version 1909 for 32-bit Systems",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows 10 Version 1909 for x64-based Systems

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows 10 Version 1909 for x64-based Systems",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows 10 Version 1909 for ARM64-based Systems

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows 10 Version 1909 for ARM64-based Systems",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows Server, version 1909 (Server Core installation)

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows Server, version 1909 (Server Core installation)",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows 10 Version 1903 for 32-bit Systems

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows 10 Version 1903 for 32-bit Systems",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows 10 Version 1903 for x64-based Systems

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows 10 Version 1903 for x64-based Systems",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows 10 Version 1903 for ARM64-based Systems

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows 10 Version 1903 for ARM64-based Systems",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

Windows Server, version 1903 (Server Core installation)

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Windows Server, version 1903 (Server Core installation)",
                    "vendor": "Microsoft",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified"
                        }
                    ]
                }

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