Input validation error in Microsoft Windows and Windows Server - CVE-2025-62455
Published: December 9, 2025
Vulnerability identifier: #VU119478
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-62455
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the target system.
The vulnerability exists due to insufficient validation of user-supplied input in Microsoft Message Queuing (MSMQ). A local user can pass specially crafted input to the application and gain elevated privileges on the system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2025-62455
Install updates from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.6691, 10 22H2 10.0.19045.6691, 10 1607 10.0.14393.8688, 10 1809 10.0.17763.8146
Windows Server - addressed in versions 2008 R2 6.1.7601.28064, 2008 6.0.6003.23666, 2012 R2 6.3.9600.22920, 2012 6.2.9200.25815, 2016 10.0.14393.8688, 2019 10.0.17763.8146
Windows Server - addressed in versions 2008 R2 6.1.7601.28064, 2008 6.0.6003.23666, 2012 R2 6.3.9600.22920, 2012 6.2.9200.25815, 2016 10.0.14393.8688, 2019 10.0.17763.8146