Dec 2025: Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability
CVE-2025-62455 Published on December 9, 2025

Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability
Improper input validation in Windows Message Queuing allows an authorized attacker to elevate privileges locally.

Vendor Advisory NVD

Weakness Type

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Products Associated with CVE-2025-62455

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Microsoft Windows 10

Microsoft Windows Server 2019

Microsoft Windows Server 2016

Microsoft Windows Server 2008 Sp2

Microsoft Windows Server 2008 R2

Microsoft Windows Server 2012

Microsoft Windows Server 2012 R2

Affected Versions

Microsoft Windows 10 Version 1607:

Version 10.0.14393.0 and below 10.0.14393.8688 is affected.

Microsoft Windows 10 Version 1809:

Version 10.0.17763.0 and below 10.0.17763.8146 is affected.

Microsoft Windows 10 Version 21H2:

Version 10.0.19044.0 and below 10.0.19044.6691 is affected.

Microsoft Windows 10 Version 22H2:

Version 10.0.19045.0 and below 10.0.19045.6691 is affected.

Microsoft Windows Server 2008 R2 Service Pack 1:

Version 6.1.7601.0 and below 6.1.7601.28064 is affected.

Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation):

Version 6.1.7601.0 and below 6.1.7601.28064 is affected.

Microsoft Windows Server 2008 Service Pack 2:

Version 6.0.6003.0 and below 6.0.6003.23666 is affected.

Microsoft Windows Server 2008 Service Pack 2 (Server Core installation):

Version 6.0.6003.0 and below 6.0.6003.23666 is affected.

Microsoft Windows Server 2012:

Version 6.2.9200.0 and below 6.2.9200.25815 is affected.

Microsoft Windows Server 2012 (Server Core installation):

Version 6.2.9200.0 and below 6.2.9200.25815 is affected.

Microsoft Windows Server 2012 R2:

Version 6.3.9600.0 and below 6.3.9600.22920 is affected.

Microsoft Windows Server 2012 R2 (Server Core installation):

Version 6.3.9600.0 and below 6.3.9600.22920 is affected.

Microsoft Windows Server 2016:

Version 10.0.14393.0 and below 10.0.14393.8688 is affected.

Microsoft Windows Server 2016 (Server Core installation):

Version 10.0.14393.0 and below 10.0.14393.8688 is affected.

Microsoft Windows Server 2019:

Version 10.0.17763.0 and below 10.0.17763.8146 is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.17763.0 and below 10.0.17763.8146 is affected.

Exploit Probability

EPSS

0.05%

Percentile

16.16%