---
id: CVE-2026-56171
title: Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
summary: >-
  Exposure of private personal information to an unauthorized actor in Windows
  RDP allows an unauthorized attacker to disclose information over a network.
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-359
vendor: Microsoft
product: Remote Desktop Web Client
affected:
  - remote_desktop_web_client >= 2.0.0.0 < 2.1.65.2
  - windows_admin_center >= 1809.0 < 2.7.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-21T19:20:45.809792Z'
published: '2026-07-17'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T18:25:36.462Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-56171'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56171'
    label: Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
tags:
  - cve.org
epss: 0.0066
epssPercentile: 0.49379
ingestedAt: '2026-09-08T17:06:31.893Z'
---

## Overview

Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.

## Affected

- `remote_desktop_web_client >= 2.0.0.0 < 2.1.65.2`
- `windows_admin_center >= 1809.0 < 2.7.4`

## Remediation

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