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CVE-2026-54113: Windows Kernel Remote Denial of Service

CVE-2026-54113 · published 2 months ago

Summary

An attacker can use a network connection to deny service to Windows systems. This is possible because the Windows Kernel doesn't limit the resources an attacker can use. To protect your systems, ensure that you have the latest Windows updates installed and consider implementing network access controls to limit who can interact with your Windows systems.

What to do

Update microsoft windows 10 version 1607 to version 10.0.14393.9418 or later.
Update microsoft windows 10 version 21h2 to version 10.0.19044.7663 or later.
Update microsoft windows 10 version 22h2 to version 10.0.19045.7663 or later.
Update microsoft windows 11 version 23h2 to version 10.0.22631.7517 or later.
Update microsoft windows 11 version 24h2 to version 10.0.26100.9168 or later.
Update microsoft windows 11 version 25h2 to version 10.0.26200.9168 or later.
Update microsoft windows 11 version 26h1 to version 10.0.28000.2704 or later.
Update microsoft windows server 2016 to version 10.0.14393.9418 or later.
Update microsoft windows server 2016 (server core installation) to version 10.0.14393.9418 or later.
Update microsoft windows server 2022 to version 10.0.20348.5499 or later.
Update microsoft windows server 2025 to version 10.0.26100.33296 or later.
Update microsoft windows server 2025 (server core installation) to version 10.0.26100.33296 or later.
Update microsoft windows_10_1607 to version 10.0.14393.9418 or later.
Update microsoft windows_10_1809 to version 10.0.17763.9115 or later.
Update microsoft windows_10_21h2 to version 10.0.19044.7663 or later.
Update microsoft windows_10_22h2 to version 10.0.19045.7663 or later.
Update microsoft windows_11_23h2 to version 10.0.22631.7517 or later.
Update microsoft windows_11_24h2 to version 10.0.26100.9106 or later.
Update microsoft windows_11_25h2 to version 10.0.26200.9106 or later.
Update microsoft windows_11_26h1 to version 10.0.28000.2704 or later.
Update microsoft windows_server_2016 to version 10.0.14393.9418 or later.
Update microsoft windows_server_2019 to version 10.0.17763.9115 or later.
Update microsoft windows_server_2022 to version 10.0.20348.5440 or later.
Update microsoft windows_server_2025 to version 10.0.26100.33222 or later.

Affected software

Vendor	Product	Affected versions
microsoft	windows 10 version 1607	< 10.0.14393.9418
microsoft	windows 10 version 1809	< 10.0.17763.9115 < 10.0.17763.9121
microsoft	windows 10 version 21h2	< 10.0.19044.7663
microsoft	windows 10 version 22h2	< 10.0.19045.7663
microsoft	windows 11 version 23h2	< 10.0.22631.7517
microsoft	windows 11 version 24h2	< 10.0.26100.9168
microsoft	windows 11 version 25h2	< 10.0.26200.9168
microsoft	windows 11 version 26h1	< 10.0.28000.2704
microsoft	windows server 2012	< 6.2.9200.26279 < 6.2.9200.26280
microsoft	windows server 2012 (server core installation)	< 6.2.9200.26279 < 6.2.9200.26280
microsoft	windows server 2016	< 10.0.14393.9418
microsoft	windows server 2016 (server core installation)	< 10.0.14393.9418
microsoft	windows server 2019	< 10.0.17763.9115 < 10.0.17763.9121
microsoft	windows server 2019 (server core installation)	< 10.0.17763.9115 < 10.0.17763.9121
microsoft	windows server 2022	< 10.0.20348.5499
microsoft	windows server 2025	< 10.0.26100.33296
microsoft	windows server 2025 (server core installation)	< 10.0.26100.33296
microsoft	windows_10_1607	< 10.0.14393.9418 `cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*`
microsoft	windows_10_1809	< 10.0.17763.9115 `cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*`
microsoft	windows_10_21h2	< 10.0.19044.7663 `cpe:2.3:o:microsoft:windows_10_21h2:::::::arm64:*`
microsoft	windows_10_22h2	< 10.0.19045.7663 `cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64:*`
microsoft	windows_11_23h2	< 10.0.22631.7517 `cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:*`
microsoft	windows_11_24h2	< 10.0.26100.9106 `cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:*`
microsoft	windows_11_25h2	< 10.0.26200.9106 `cpe:2.3:o:microsoft:windows_11_25h2:::::::arm64:*`
microsoft	windows_11_26h1	< 10.0.28000.2704 `cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*`
microsoft	windows_server_2012	All versions `cpe:2.3:o:microsoft:windows_server_2012:-:::::::*`
microsoft	windows_server_2016	< 10.0.14393.9418 `cpe:2.3:o:microsoft:windows_server_2016::::::::`
microsoft	windows_server_2019	< 10.0.17763.9115 `cpe:2.3:o:microsoft:windows_server_2019::::::::`
microsoft	windows_server_2022	< 10.0.20348.5440 `cpe:2.3:o:microsoft:windows_server_2022::::::::`
microsoft	windows_server_2025	< 10.0.26100.33222 `cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*`

Original advisory text

Remote Procedure Call Denial of Service Vulnerability

Allocation of resources without limits or throttling in Windows Kernel allows an unauthorized attacker to deny service over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54113 vendor-advisory patch

Fix within

Internet-facing 14 days

Internal 60 days

Not known to be exploited
Can be exploited automatically
Gives an attacker partial control

Severity

7.5 High

Exploitation

1% chance of attack within 30 days

Type

CWE-770Allocation of Resources Without Limits

Timeline

Published11 Aug 2026

Updated4 Nov 2026

First seen11 Aug 2026

Sources

CVE-2026-54113 · NVD

CVE-2026-54113 · MITRE

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