---
id: CVE-2026-42834
title: >-
  Improper access control in Windows Admin Center allows an authorized attacker
  to elevate privileges over a network.
summary: >-
  Improper access control in Windows Admin Center allows an authorized attacker
  to elevate privileges over a network.
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-59
vendor: microsoft
product: windows_admin_center
affected:
  - windows_admin_center < 0.72.0.0
patched:
  - windows_admin_center 0.72.0.0
published: '2026-05-20'
updated: '2026-07-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-42834'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42834'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.00408
epssPercentile: 0.34858
ingestedAt: '2026-07-23T12:17:54.770Z'
---

## Overview

Improper access control in Windows Admin Center allows an authorized attacker to elevate privileges over a network.

## Affected

- `windows_admin_center < 0.72.0.0`

## Remediation

Upgrade past the affected range:

- `windows_admin_center 0.72.0.0`