CVE-2025-26641: Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
First published: Tue Apr 08 2025(Updated: )
<p>Uncontrolled resource consumption in Windows Cryptographic Services allows an unauthorized attacker to deny service over a network.</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Windows 10 | =21H2 | |
| Microsoft Windows Server 2022 | ||
| Windows 11 | =23H2 | |
| Windows 10 | =1607 | |
| Windows 10 | =21H2 | |
| Windows 11 | =23H2 | |
| Windows 10 | =22H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2012 R2 | ||
| Windows 10 | =22H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Windows 11 | =22H2 | |
| Windows 10 | =22H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server 2008 R2 | ||
| Windows 10 | =21H2 | |
| Microsoft Windows Server 2022 | ||
| Windows 10 | =1607 | |
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =22H2 | |
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2025 | ||
| Windows 10 | =1809 | |
| Microsoft Windows Server 2025 | ||
| Windows 11 | =24H2 | |
| Microsoft Windows Server 2019 | ||
| Windows 11 | =24H2 | |
| Windows 10 | =1809 | |
| Windows 10 | ||
| Windows 10 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-26641?
CVE-2025-26641 is classified as a Denial of Service vulnerability affecting Windows Cryptographic Services.
How do I fix CVE-2025-26641?
To resolve CVE-2025-26641, apply the recommended security updates for your affected Microsoft products.
Which Microsoft products are affected by CVE-2025-26641?
CVE-2025-26641 affects various versions of Windows, including Windows 10, Windows 11, and Windows Server editions.
Can CVE-2025-26641 be exploited remotely?
Yes, CVE-2025-26641 can be exploited by unauthorized attackers over the network, leading to a denial of service.
What are the potential impacts of CVE-2025-26641?
The exploitation of CVE-2025-26641 may result in service disruptions, making affected systems unavailable.
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- agent/author
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- agent/severity
- agent/source
- agent/description
- agent/tags
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- vendor/microsoft
- canonical/windows 10
- version/windows 10/21h2
- canonical/microsoft windows server 2022
- canonical/windows 11
- version/windows 11/23h2
- version/windows 10/1607
- version/windows 10/22h2
- canonical/microsoft windows server
- canonical/microsoft windows server 2012 r2
- version/windows 11/22h2
- canonical/microsoft windows server 2008 r2
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
- canonical/microsoft windows server 2022 23h2
- canonical/microsoft windows server 2025
- version/windows 10/1809
- version/windows 11/24h2