---
id: CVE-2020-1075
title: >-
  An information disclosure vulnerability exists when Windows Subsystem for
  Linux improperly handles objects in memory
summary: >-
  An information disclosure vulnerability exists when Windows Subsystem for
  Linux improperly handles objects in memory. An attacker who successfully
  exploited this vulnerability could obtain information to further compromise
  the user’s sys…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
vendor: microsoft
product: windows_10
affected:
  - 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-2020-1075'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1075'
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1075
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01329
epssPercentile: 0.69825
ingestedAt: '2026-08-19T17:42:37.116Z'
---

## Overview

An information disclosure vulnerability exists when Windows Subsystem for Linux improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.
A attacker could exploit this vulnerability by running a specially crafted application.
The update addresses the vulnerability by correcting how Windows Subsystem for Linux handles objects in memory.

## Affected

- `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.