CVE-2026-61367

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

2026-08-11

EPSS Evaluated

2026-08-30

NVD

CVE-2026-61367

EUVD

EUVD-2026-56326

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
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_2016	to 10.0.14393.9418 (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 'wmic qfe list' or 'systeminfo | findstr /C:KB' to verify missing updates.

Impact Analysis

An attacker with local access could gain higher privileges, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Compliance Impact

This vulnerability allows local privilege escalation in Windows Remote Desktop Services due to missing authentication for critical functions. Such unauthorized access could lead to data breaches or unauthorized modifications, which may violate compliance requirements under GDPR (data protection) and HIPAA (health information security) by exposing sensitive data or systems.

Mitigation Strategies

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

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