---
id: CVE-2021-27059
title: Microsoft Office Remote Code Execution Vulnerability
summary: Microsoft Office Remote Code Execution Vulnerability
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H'
vendor: microsoft
product: office
affected:
  - office = 2010
  - office = 2013
  - office_2016
published: '2021-03-11'
updated: '2026-08-19'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-27059'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27059'
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27059
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27059
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
epss: 0.06076
epssPercentile: 0.93085
kev: true
kevDateAdded: '2021-11-03'
kevDueDate: '2021-11-17'
kevRansomware: false
exploited: true
ingestedAt: '2026-08-20T17:59:03.195Z'
---

## Overview

Microsoft Office Remote Code Execution Vulnerability

## Affected

- `office = 2010`
- `office = 2013`
- `office_2016`

## Remediation

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