---
id: CVE-2020-1087
title: >-
  An elevation of privilege vulnerability exists in the way that the Windows
  Kernel handles objects in memory
summary: >-
  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.

  To exploit the vulnerabil…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: microsoft
product: windows_10
affected:
  - windows_10 = 1709
  - windows_10 = 1803
  - windows_10 = 1809
  - windows_10 = 1903
  - windows_10 = 1909
  - windows_server_2016 = 1709
  - windows_server_2016 = 1803
  - windows_server_2016 = 1909
  - windows_server_2019
published: '2020-05-21'
updated: '2026-08-19'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-1087'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1087'
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1087
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00833
epssPercentile: 0.56143
ingestedAt: '2026-08-19T17:42:37.688Z'
---

## Overview

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.
To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application.
The security update addresses the vulnerability by ensuring the Windows Kernel properly handles objects in memory.

## Affected

- `windows_10 = 1709`
- `windows_10 = 1803`
- `windows_10 = 1809`
- `windows_10 = 1903`
- `windows_10 = 1909`
- `windows_server_2016 = 1709`
- `windows_server_2016 = 1803`
- `windows_server_2016 = 1909`
- `windows_server_2019`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.