CVE-2026-61356: Windows Remote Desktop Services Elevation of Privilege Vulnerability

Published Aug 11, 2026
·
Updated

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

Other sources

Windows Remote Desktop Services Elevation of Privilege Vulnerability

— Microsoft

Affected Software

41 affected componentsFixes available
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows 11=23H2
10.0.22631.7517
Microsoft Windows 11=23H2
10.0.22631.7517
Microsoft Windows Server 2025<10.0.26100.33296, <10.0.26100.33222
10.0.26100.3329610.0.26100.33222
Microsoft Windows Server 2025<10.0.26100.33296, <10.0.26100.33222
10.0.26100.3329610.0.26100.33222
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows Server 2022<10.0.20348.5499, <10.0.20348.5440
10.0.20348.549910.0.20348.5440
Microsoft Windows Server 2019<10.0.17763.9115
10.0.17763.9115
Microsoft Windows Server 2019<10.0.17763.9115
10.0.17763.9115
Microsoft Windows Server 2022<10.0.20348.5499, <10.0.20348.5440
10.0.20348.549910.0.20348.5440
Microsoft Windows 10=1809
10.0.17763.9115
Microsoft Windows 10=1809
10.0.17763.9115
Microsoft Windows 10 1809<10.0.17763.9115
Microsoft Windows 10 1809<10.0.17763.9115
Microsoft Windows 10 21h2<10.0.19044.7663
Microsoft Windows 10 21h2<10.0.19044.7663
Microsoft Windows 10 21h2<10.0.19044.7663
Microsoft Windows 10 22h2<10.0.19045.7663
Microsoft Windows 10 22h2<10.0.19045.7663
Microsoft Windows 10 22h2<10.0.19045.7663
Microsoft Windows 11 23h2<10.0.22631.7517
Microsoft Windows 11 23h2<10.0.22631.7517
Microsoft Windows 11 24h2<10.0.26100.9106
Microsoft Windows 11 24h2<10.0.26100.9106
Microsoft Windows 11 25h2<10.0.26200.9106
Microsoft Windows 11 25h2<10.0.26200.9106
Microsoft Windows 11 26h1<10.0.28000.2704
Microsoft Windows 11 26h1<10.0.28000.2704
Microsoft Windows Server 2019<10.0.17763.9115
Microsoft Windows Server 2022<10.0.20348.5440
Microsoft Windows Server 2025<10.0.26100.33222
Microsoft Windows 11=24H2
10.0.26100.916810.0.26100.9106
Microsoft Windows 11=24H2
10.0.26100.916810.0.26200.9106
Microsoft Windows 11=25H2
10.0.26200.916810.0.26200.9106
Microsoft Windows 11=25H2
10.0.26200.916810.0.26200.9106

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.28000.2704Patch KB5121000
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.22631.7517Patch KB5120240
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19045.7663Patch KB5120249
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19044.7663Patch KB5120249
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17763.9115Patch KB5120238
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9168Fixed in 10.0.26200.9106Patch KB5120994
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26200.9168Fixed in 10.0.26200.9106Patch KB5120994

Event History

Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:03 PM
Data Sourced
via MITRE·05:03 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-61356?

CVE-2026-61356 has a high severity rating of 7.8.

2

How do I fix CVE-2026-61356?

To fix CVE-2026-61356, apply the latest security updates provided by Microsoft for affected Windows versions.

3

What types of systems are affected by CVE-2026-61356?

CVE-2026-61356 affects Microsoft Windows 11, Windows 10, Windows Server 2019, 2022, and 2025.

4

What is the impact of CVE-2026-61356?

CVE-2026-61356 allows an authorized attacker to elevate privileges locally on affected systems.

5

When was CVE-2026-61356 published?

CVE-2026-61356 was published on August 11, 2026.

Company

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