CVE-2025-21251: Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
First published: Tue Jan 14 2025(Updated: )
Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows 11 | =23H2 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows 11 | =22H2 | |
| Microsoft Windows 11 | =22H2 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows 11 | =23H2 | |
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 10 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows Server 2012 x64 | ||
| Microsoft Windows Server 2012 x64 | ||
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows 10 1507 | <10.0.10240.20890 | |
| Microsoft Windows 10 1507 | <10.0.10240.20890 | |
| Microsoft Windows 10 Version 1607 x86 | <10.0.14393.7699 | |
| Microsoft Windows 10 Version 1607 x86 | <10.0.14393.7699 | |
| Microsoft Windows 10 1809 | <10.0.17763.6775 | |
| Microsoft Windows 10 1809 | <10.0.17763.6775 | |
| Microsoft Windows 10 21h2 | <10.0.19044.5371 | |
| Microsoft Windows 10 22h2 | <10.0.19045.5371 | |
| Microsoft Windows 11 22h2 | <10.0.22621.4751 | |
| Microsoft Windows 11 23h2 | <10.0.22631.4751 | |
| Microsoft Windows 11 Home Edition | <10.0.26100.2894 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Server 2012 x64 | ||
| Microsoft Windows Server 2012 x64 | =r2 | |
| Microsoft Windows Server 2016 | <10.0.14393.7699 | |
| Microsoft Windows Server 2019 | <10.0.17763.6775 | |
| Microsoft Windows Server 2022 | <10.0.20348.3091 | |
| Microsoft Windows Server 2022 23H2 | <10.0.25398.1369 | |
| Microsoft Windows Server 2025 | <10.0.26100.2894 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21251?
CVE-2025-21251 has been assessed with a critical severity rating due to its potential to cause denial of service.
How do I fix CVE-2025-21251?
To resolve CVE-2025-21251, install the latest security updates provided by Microsoft for the impacted Windows versions.
Which products are affected by CVE-2025-21251?
CVE-2025-21251 affects various Microsoft products including Windows 10, Windows Server 2022, and Windows 11 across multiple versions.
What kind of attacks can exploit CVE-2025-21251?
CVE-2025-21251 can be exploited to launch denial of service attacks, potentially rendering affected systems unresponsive.
Is there a workaround for CVE-2025-21251?
Currently, it is recommended to apply the security patches from Microsoft as the primary mitigation for CVE-2025-21251.
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- canonical/microsoft windows server 2008 r2
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- canonical/microsoft windows server 2022 23h2
- canonical/microsoft windows server 2008 itanium
- canonical/microsoft windows 10 1507
- canonical/microsoft windows 10 version 1607 x86
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- canonical/microsoft windows 10 22h2
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