CVE-2026-61356

Analyzed Analyzed - Analysis Complete

Missing Authentication in Windows Remote Desktop Services Leads to Privilege Escalation

Publication date: 2026-08-11

Last updated on: 2026-08-16

Assigner: Microsoft Corporation

Description

Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-11

Last Modified

2026-08-16

Generated

2026-08-31

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-61356

EUVD

EUVD-2026-56325

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_server_2019	to 10.0.17763.9115 (exc)
microsoft	windows_server_2022	to 10.0.20348.5440 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This vulnerability is a missing authentication issue in Windows Remote Desktop Services. An authorized attacker can exploit it to elevate their privileges locally on a system.

Detection Guidance

This vulnerability involves missing authentication in Windows Remote Desktop Services. Detection requires checking for unauthorized privilege escalation attempts or misconfigurations in Remote Desktop Services. Use Windows Event Viewer to review Security logs for unusual privilege-related events. Check for unpatched systems using commands like 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' and verify installed updates with 'wmic qfe list'.

Impact Analysis

An attacker could gain higher-level access to your system, allowing them to install programs, view or delete data, or create new accounts with full user rights. This could lead to complete system compromise.

Compliance Impact

This vulnerability could violate compliance requirements that mandate strict access controls and authentication for sensitive data access, such as GDPR or HIPAA. Unauthorized privilege escalation risks data breaches and non-compliance penalties.

Mitigation Strategies

Apply the latest security updates from Microsoft for Windows Remote Desktop Services to address the missing authentication issue.

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