CVE-2026-84012: Windows Remote Desktop Services Remote Code Execution Vulnerability
Double free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
Other sources
Windows Remote Desktop Services Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
Does exploitation require valid credentials or user interaction?
No. The CVSS vector indicates no privileges are required and no user interaction is needed.
How difficult is exploitation expected to be?
The attack complexity is rated High, indicating that exploitation requires conditions beyond simply reaching the vulnerable service over the network.
Which Windows versions are listed as affected?
The listed products are Microsoft Windows 10 and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025.
What could a successful compromise allow?
The vulnerability is rated High for confidentiality, integrity, and availability impact, so successful exploitation could affect all three security properties.