CVE-2024-49129: Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-10 · updated 2026-06-17
Weakness: CWE-400

Description

Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability

Affected products

Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.7606 — fixed in 10.0.14393.7606
Microsoft Windows Server 2019: before 10.0.17763.6659 — fixed in 10.0.17763.6659
Microsoft Windows Server 2022: before 10.0.20348.2966 — fixed in 10.0.20348.2966
Microsoft Windows Server 2025: before 10.0.26100.2605 — fixed in 10.0.26100.2605
Microsoft Windows Server 2012: from 6.2.9200.0 before 6.2.9200.25222 — fixed in 6.2.9200.25222
Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.22318 — fixed in 6.3.9600.22318
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.7606 — fixed in 10.0.14393.7606
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.6659 — fixed in 10.0.17763.6659
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.2966 — fixed in 10.0.20348.2966
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1308 — fixed in 10.0.25398.1308
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.2605 — fixed in 10.0.26100.2605

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2016 10.0.14393.7606; Microsoft Windows Server 2019 10.0.17763.6659; Microsoft Windows Server 2022 10.0.20348.2966; Microsoft Windows Server 2025 10.0.26100.2605; Microsoft Windows Server 2012 6.2.9200.25222; Microsoft Windows Server 2012 R2 6.3.9600.22318; Microsoft Windows Server 2016 10.0.14393.7606; Microsoft Windows Server 2019 10.0.17763.6659; Microsoft Windows Server 2022 10.0.20348.2966; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1308; Microsoft Windows Server 2025 10.0.26100.2605. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49129

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