---
id: CVE-2021-34474
title: Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
summary: Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'
vendor: microsoft
product: dynamics_365_business_central
affected:
  - dynamics_365_business_central = 2020
  - dynamics_365_business_central = 2021
published: '2021-07-14'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-34474'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34474'
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34474
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.02157
epssPercentile: 0.81417
ingestedAt: '2026-08-10T16:41:16.218Z'
---

## Overview

Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability

## Affected

- `dynamics_365_business_central = 2020`
- `dynamics_365_business_central = 2021`

## Remediation

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