---
id: CVE-2020-1010
title: >-
  An elevation of privilege vulnerability exists in Windows Block Level Backup
  Engine Service (wbengine) that allows file deletion in arbitrary locations.

  To exploit the vulnerability, an attacker would first have to log on to the
  system
summary: >-
  An elevation of privilege vulnerability exists in Windows Block Level Backup
  Engine Service (wbengine) that allows file deletion in arbitrary locations.

  To exploit the vulnerability, an attacker would first have to log on to the
  system. …
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
  - windows_10 = 1607
  - windows_10 = 1709
  - windows_10 = 1803
  - windows_10 = 1809
  - windows_10 = 1903
  - windows_10 = 1909
  - windows_7
  - windows_8.1
  - windows_rt_8.1
  - windows_server_2008 = r2
  - windows_server_2012
  - windows_server_2012 = r2
  - windows_server_2016
  - windows_server_2016 = 1803
  - windows_server_2016 = 1903
  - 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-2020-1010'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1010'
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1010
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00972
epssPercentile: 0.59961
ingestedAt: '2026-08-19T17:42:36.066Z'
---

## Overview

An elevation of privilege vulnerability exists in Windows Block Level Backup Engine Service (wbengine) that allows file deletion in arbitrary locations.
To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The update addresses the vulnerability by correcting how the  Windows Block Level Backup Engine Service handles file operations.

## Affected

- `windows_10`
- `windows_10 = 1607`
- `windows_10 = 1709`
- `windows_10 = 1803`
- `windows_10 = 1809`
- `windows_10 = 1903`
- `windows_10 = 1909`
- `windows_7`
- `windows_8.1`
- `windows_rt_8.1`
- `windows_server_2008 = r2`
- `windows_server_2012`
- `windows_server_2012 = r2`
- `windows_server_2016`
- `windows_server_2016 = 1803`
- `windows_server_2016 = 1903`
- `windows_server_2016 = 1909`
- `windows_server_2019`

## Remediation

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