---
id: CVE-2021-34477
title: Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
summary: Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability
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'
cwe:
  - CWE-269
vendor: microsoft
product: .net_education_bundle_sdk_install_tool
affected:
  - '.net_education_bundle_sdk_install_tool >= 0.6.0, < 0.7.0'
  - '.net_install_tool_for_extension_authors >= 1.1.0, < 1.2.0'
patched:
  - .net_education_bundle_sdk_install_tool 0.7.0
  - .net_install_tool_for_extension_authors 1.2.0
published: '2021-07-14'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-34477'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34477'
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34477
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00564
epssPercentile: 0.44529
ingestedAt: '2026-08-10T16:41:16.282Z'
---

## Overview

Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability

## Affected

- `.net_education_bundle_sdk_install_tool >= 0.6.0, < 0.7.0`
- `.net_install_tool_for_extension_authors >= 1.1.0, < 1.2.0`

## Remediation

Upgrade past the affected range:

- `.net_education_bundle_sdk_install_tool 0.7.0`
- `.net_install_tool_for_extension_authors 1.2.0`