---
id: CVE-2026-47294
title: >-
  Improper neutralization of special elements used in an os command ('os command
  injection') in Microsoft Office SharePoint allows an authorized attacker to
  execute code over a network.
summary: >-
  Improper neutralization of special elements used in an os command ('os command
  injection') in Microsoft Office SharePoint allows an authorized attacker to
  execute code over a network.
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: microsoft
product: sharepoint_server
affected:
  - sharepoint_server < 16.0.19725.20280
  - sharepoint_server = 2016
  - sharepoint_server = 2019
patched:
  - sharepoint_server 16.0.19725.20280
published: '2026-06-01'
updated: '2026-07-22'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-47294'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47294'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.00662
epssPercentile: 0.49882
ingestedAt: '2026-07-23T07:14:46.677Z'
---

## Overview

Improper neutralization of special elements used in an os command ('os command injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

## Affected

- `sharepoint_server < 16.0.19725.20280`
- `sharepoint_server = 2016`
- `sharepoint_server = 2019`

## Remediation

Upgrade past the affected range:

- `sharepoint_server 16.0.19725.20280`